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SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR OTHER BUILDING AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
References relevant to classification in this subclass
This subclass does not cover:

Moulds for making units for prefabricated buildings or prefabricated stair units

Forms or shutterings of the construction, permanent or lost forms.

Glossary of terms
In this subclass, the following terms (or expressions) are used with the meaning indicated:

Scaffold

Temporary platform or support

Synonyms and Keywords

In patent documents the following expressions/words "formwork", "falsework", "shuttering" and "form" are often used as synonyms.

Scaffolds primarily resting on the ground
Definition statement
This group covers:

Workmen's or safety scaffolds i.e. temporary platforms or supports, supported mainly by the ground.

Relationship between large subject matter areas

Scaffolds supported essentially by the building are classified in E04G 3/00.

References relevant to classification in this group
This group does not cover:

Stagings, scaffolding, shores or struts usable both on slipways and in dry docks

Lifting devices for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations

Component parts or accessories for scaffolds

Ladders in general, accessories specific therefor

Ladders with platforms

Platforms on, or for use on, ladders

Trestles (per se). Work benches, portable stands or supports for positioning portable tools or work to be operated on thereby of trestle type

Informative references
Attention is drawn to the following places, which may be of interest for search:

Shelves characterised by their constructional features

Special rules of classification within this group

E04G 1/18, B66F 11/04: Lifting devices for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations are classified in B66F 11/04; Scaffolds adjustable in height are classified in E04G 1/18.

E04G 1/32, F16M 11/00, B25H 1/08: Trestles per se are classified in F16M 11/00; Work benches, portable stands or supports for positioning portable tools or work to be operated on thereby of trestle type are classified in B25H 1/08; Scaffolds designed to provide support only at a low height using trestles are classified in E04G 1/32.

E04G 1/36, B65C 5/02: Stagings, scaffolding, shores or struts usable both on slipways and in dry docks are classified in B65C 5/02; Scaffolds for particular parts of buildings or buildings of particular shape are classified in E04G 1/36.

E04G 1/38; E04G 3/00: Scaffolds both resting on the ground and supported by the building should be classified in E04G 1/38 not E04G 3/00.

essentially comprising special means for supporting or forming platforms (E04G 1/20 takes precedence); Platforms (boards or planks therefor E04G 5/08, { clips or connections for securing boards E04G 7/28})
Definition statement
This subgroup covers:

Scaffolds essentially comprising special means for supporting or forming platforms i.e. scaffolds with specific fastening features on the scaffold frame or on the board for supporting or forming platforms, e.g. hooks and corresponding holes.

References relevant to classification in this group
This subgroup does not cover:

Scaffold boards or planks i.e. plain scaffold boards of planks without specific fastening features, e.g. hooks or corresponding holes.

Clips or connections for securing boards, i.e. clips which are part of neither the plank or board not the scaffold frame

Ladders with platforms

Platforms on, or for use on, ladders

Special rules of classification within this group

E04G 1/15, E04G 5/08, E04G 7/28: Plain scaffold boards or planks without specific fastening means should be classified in E04G 5/08; Clips or connecting means for securing boards, i.e. clips which are part of neither the plank or board nor of the scaffold frame should be classified in E04G 7/28; Scaffolds essentially comprising specific fastening means on either the scaffold frame or on the board, e.g. hooks and corresponding holes, should be classified in E04G 1/15.

Scaffolds essentially supported by building constructions, e.g. adjustable in height (E04G 1/00 takes precedence { and E04G 21/3204 takes precedence})
Definition statement
This group covers:

Workmen's or safety scaffolds (i.e. temporary platforms or supports) supported mainly by the building construction.

Relationship between large subject matter areas

Scaffolds primarily resting on the ground are classified in E04G 1/00. Scaffolds both resting on the ground and supported by the building are classified in E04G 1/38 not in E04G 3/00.

References relevant to classification in this group
This group does not cover:

Component parts or accessories for scaffolds

Means for fastening, supporting, or bracing scaffolds on or against building constructions

Scaffold consoles or brackets

Safety or protective measures against falling down for persons during the construction of buildings, i.e. with the function of preventing or catching a fall and without the function of supporting the persons performing their normal work

Stagings, scaffolding, shores or struts usable both on slipways and in dry docks

Devices or arrangements allowing walking on the roof or in the gutter

Movable inspection or maintenance platforms, e.g. travelling scaffolding or vehicles specially designed to provide access to the undersides of bridges

Lifting devices for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations

Scaffolds primarily resting on the ground

Informative references
Attention is drawn to the following places, which may be of interest for search:

Arrangements for cleaning building facades i.e. the gondolas carrying the cleaning device of such arrangements are similar to the scaffolds' gondolas, however do not provide a support function for persons

Special rules of classification within this group

E04G 3/00, E04G 5/06, E04G 21/3204: Consoles or brackets to be fastened directly to the building and supporting persons performing their normal work are classified in E04G 3/00; Consoles or brackets to be fastened directly to the building with the function of preventing or catching a fall and without the function of supporting the persons performing their normal work are classified in E04G 21/3204; Consoles for scaffoldings are classified in E04G 5/06.

Component parts or accessories for scaffolds (connections E04G 7/00)
Definition statement
This group covers:

Accessories for scaffolds, in particular scaffolds' feet, fastening means to building construction, consoles or brackets, boards or planks, steps or ladders, canopies, railings and struts or stiffening rods, devices which are specifically designed to be attached to the scaffold and to store buildlng material or tools.

References relevant to classification in this group
This group does not cover:

Consoles or brackets essentially supported by building constructions and supporting persons performing their normal work

Connections between parts of the scaffold

Scaffolds essentially comprising special means for supporting or forming platforms i.e. scaffolds with specific fastening features on the scaffold frame or on the board for supporting or forming platforms (e.g. hooks and corresponding holes, etc.)

Clips or connections for securing boards, i.e. clips which are part of neither the plank or board nor the scaffold frame

Safety or protective measures against falling down for persons during the construction of buildings, i.e. with the function of preventing or catching a fall and without the function of supporting the persons performing their normal work

Safety or protective measures preventing damage to building parts or finishing work during construction

Temporary arrangements for giving access from one level to another for men or vehicles, e.g. steps, ramps

Fastenings in general

Ladders in general

Informative references
Attention is drawn to the following places, which may be of interest for search:

Shelves characterised by their constructional features

Special rules of classification within this group

E04G 5/00, E04G 21/3204: Safety or protective measures against falling down for persons during the erection of scaffolding should be classified in E04G 5/00 not in E04G 21/3204.

E04G 3/00, E04G 5/06, E04G 21/3204: Consoles or brackets to be fastened directly to the building and supporting persons performing their normal work are classified in E04G 3/00; Consoles or brackets to be fastened directly to the building with the function of preventing or catching a fall and without the function of supporting the persons performing their normal work are classified in E04G 21/3204; Consoles for scaffoldings are classified in E04G 5/06.

E04G 5/08, E04G 1/15, E04G 7/28: Plain scaffold boards or planks without specific fastening means should be classified in E04G 5/08; Clips or connecting means for securing boards, i.e. clips which are part of neither the plank or board not the scaffold frame are classified in E04G 7/28; scaffolds essentially comprising specific fastening means on either the scaffold frame or on the board, e.g. hooks and corresponding holes are classified in E04G 1/15.

E04G 5/10, E04G 27/00: Steps or ramps as construction implements or construction aid are classified in E04G 27/00; Steps for scaffolds are classified in E04G 5/10

E04G 5/12, E04G 21/24: Details of scaffolds' canopies should be classified in E04G 5/12; Details about the use of scaffoldings with canopies to protect buildings during construction should be classified in E04G 21/24.

Connections between parts of the scaffold (for building structures in general E04B 1/38; connections in general F16B; { connection for tubes or rods in general F16B 7/00})
Definition statement
This group covers:

Connection between parts of the scaffold, e.g. with separate coupling elements e.g. ropes, cables, chains, clamps or with non-detachable coupling elements.

References relevant to classification in this group
This group does not cover:

Connections for (permanent) building structures in general

Connections in general

Connections of rods or tubes in general

Means for fastening cables or ropes to one another or to other objects

Scaffolds essentially comprising special means for supporting or forming platforms i.e. scaffolds with specific fastening features on the scaffold frame or on the board for supporting or forming platforms, e.g. hooks and corresponding holes.

Accessories for scaffolds, in particular scaffolds' feet, fastening means to building construction, consoles or brackets, boards or planks, steps or ladders, canopies, railings and struts or stiffening rods.

Scaffold boards or planks i.e. plain scaffold boards of planks without details of specific fastening features, e.g. hooks or corresponding holes.

Mobile scaffolds; Scaffolds with mobile platforms suspended by flexible supporting elements, e.g. cables.

Special rules of classification within this group

E04G 7/28, E04G 1/15, E04G 5/08: Plain scaffold boards or planks without specific fastening means are classified in E04G 5/08; Clips or connecting means for securing boards, i.e. clips which are part of neither the plank or board not the scaffold frame are classified in E04G 7/28; scaffolds essentially comprising specific fastening means on either the scaffold frame or on the board, e.g. hooks and corresponding holes, are classified in E04G 1/15.

Forming or shuttering elements for general use {(for prefabrication of concrete elements in a plant B28B 7/00)}
Definition statement
This group covers:

Forming or shuttering elements for general use, re-usable and to be used in situ.

References relevant to classification in this group
This group does not cover:

Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs, i.e. formworks showing features specific for the casting of walls, floors, ceiling

Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies, i.e. formworks showing features specific for the casting of particular parts of buildings, e.g. stairs, steps, cornices, balconies.

Forms or shutterings for making (i.e. formworks showing features specific for the casting of openings, cavities, slits, or channels) cf. E04G 15/00.

Moulds; Cores; Mandrels to be used for prefabrication of elements in prefabrication plants rather than in-situ.

Informative references
Attention is drawn to the following places, which may be of interest for search:

Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels

E02C2/00

Special rules of classification within this group

E04G 9/00, B28B 7/00: forms to be used in situ are classified in E04G 9/00, forms to be used in prefabrication plants are classified in B28B 7/00.

Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs {(for prefabrication of concrete elements in a plant B28B 7/00)}
Definition statement
This group covers:

Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs, re-usable and to be used in situ.

References relevant to classification in this group
This group does not cover:

Forming or shuttering elements for general use

Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies, i.e. formworks showing features specific for the casting of particular parts of buildings, e.g. stairs, steps, cornices, balconies

Forms or shutterings for making i.e. formworks showing features specific for the casting of openings, cavities, slits, or channels

Props, struts or chocks for the construction

Floor structures wholly cast in situ with or without form units or reinforcements, i.e. floors with lost forms rather than re-usable forms

Moulds for making units for prefabricated buildings, i.e. moulds for the prefabrication of units for prefabricated buildings in a prefabrication site rather than in situ

Structures made from masses, e.g. of concrete, cast or similarly formed in situ with or without making use of additional elements, such as permanent forms made of particular materials, e.g. layered products, rather than re-usable forms

Walls made by casting, pouring, or tamping in situ made in permanent forms rather than in re-usable forms

Special rules of classification within this group

E04G 11/00, B28B 7/22: Forms to be used in situ are classified in E04G 11/00; Forms to be used in prefabrication plants are classified in B28B 7/22.

E04G 11/00, E04B 5/32, E04B 1/167, E04B 2/86: Re-usable forms are classified in E04G 11/00; Lost forms are classified in E04B 5/32, E04B 1/167 or E04B 2/86.

E04G 11/48, E04G 25/00: Structures with features specific for supporting shutterings or frames for floors or roofs are classified in E04G 11/48; Props, struts and chocks for the construction in general are classified in E04G 25/00.

Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies { foundations, sills(E04G 11/365 takes precedence; flat foundations e.g. with lost forms E02D 27/01; removable forms or shutterings for road-building purposes E01C 19/50)}
Definition statement
This group covers:

Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies, re-usable and to be used in situ.

References relevant to classification in this group
This group does not cover:

Stop-end shutterings for floors, ceilings, or roofs of plane or curved surfaces

Flat foundations with lost forms rather than re-usable forms

Removable forms or shutterings for road-building purposes

Columns; Pillars; Struts of concrete other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings using permanent forms rather than in re-usable forms

Moulds for making units for prefabricated buildings in a prefabrication site rather than in situ; Moulds for making prefabricated stair units in a prefabrication site rather than in situ

Stairways; Layouts thereof, which are using permanent forms rather than in re-usable forms

Special rules of classification within this group

E04G 13/00, E02D 27/01: Re-usable forms for foundations are classified in E04G 13/00, foundations with lost forms are classified in E02D 27/01.

E04G 13/02, E04C 3/34: Re-usable forms for columns are classified in E04G 13/02, columns with lost forms are classified in E04C 3/34.

E04G 13/06, B28B 7/225, E04F 11/02: Re-usable forms for stairs to be used in situ are classified in E04G 13/06, forms for stairs to be used in a prefabrication plant are classified in B28B 7/225, stairs elements with lost shuttering are classified in E04F 11/02.

Forms or shutterings for making openings, cavities, slits, or channels (forming part of shuttering for walls E04G 11/06, { e.g. double walls E04G 11/18; prefabricated elements with elements wholly or partly embedded therein B28B 23/00; core or mandrels for the prefabrication of concrete elements B28B 7/28})
Definition statement
This group covers:

Forms or shutterings for making openings, cavities, slits, or channels, to be used in situ.

References relevant to classification in this group
This group does not cover:

Forms forming part of shuttering for walls, [N: e.g. double walls E04G 11/18]

Forms forming part of shuttering for double walls

Means in or on the elements for connecting same to handling apparatus, i.e. anchors in or on building elements specially adapted for handling these elements

Templates or adjusting tools for anchoring elements or elements to be incorporated in the structure

Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material, to be used in the prefabrication process in prefabrication plants; Core or mandrels to be used in the prefabrication process in prefabrication plants

Installations of electric cables or lines in or on buildings, distribution boxes

Special rules of classification within this group

E04G 15/04, E04G 21/142: Cores for the anchors are classified in E04G 15/04; Anchors per se are classified in E04G 21/142.

E04G 15/00, B28B 23/00, B28B 23/005, B28B 23/0056, B28B 7/28: Forms or shutterings for making openings, re-usable or lost, to be used in situ are classified in E04G 15/00; Forms or shutterings for making openings, to be used in the prefabrication process in prefabrication plants are classified in B28B 23/00, B28B 23/005, B28B 23/0056, B28B 7/28

E04G 15/06, H02G 3/08: electric distribution boxes are classified in H02G 3/08 not in E04G 15/06.

Connecting or other auxiliary members for forms, falsework structure, or shutterings
Definition statement
This group covers:

Connecting or other auxiliary members for forms, falsework structure, or shutterings, for re-usable forms to be used in situ.

References relevant to classification in this group
This group does not cover:

Forms for rooms as a whole, by which walls and floors are cast simultaneously, whole storeys, or whole buildings

Forms for vertical ducts

Forms for columns

Struts fro the construction

Walls made by casting, pouring, or tamping in situ made in permanent forms with ties going through the forms. i.e. ties for lost forms

Special rules of classification within this group

E04G 17/04, E04B 2/8647: Ties for re-usable forms are classified in E04G 17/04; Ties for lost forms are classified in E04B 2/8647.

Auxiliary treatment of forms, e.g. dismantling; Cleaning devices (lubricating compositions C10M)
References relevant to classification in this group
This group does not cover:

Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means

Lubricating compositions

Special rules of classification within this group

E04G 19/00, C10M: Lubricating compositions are classified in C10M not in E04G 19/00.

E04G 19/003, B66C 1/10: Arrangements for moving specifically forms from one place to the other are classified in E04G 19/003; Arrangements for moving general items from one place to the other are classified in B66C 1/10.

Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work (conveying in general B65G; lifting devices B66; working stone-like materials B28D; measuring instruments G01)
References relevant to classification in this group
This group does not cover:

Tying devices for hops, vines or trees with e.g. wire

Fastening devices for devices for lowering persons from buildings or the like

Devices for lowering persons from buildings or the like by making use of jumping devices, e.g. jumping-sheets, jumping-mattresses

Climbing tools, e.g. climbing irons for masts

Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion

Generating vibration is general

Workshop marking tools

Producing shaped articles

Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material, with anchoring or fastening elements for the shaped articles

Working concrete in general, e.g. mixing machines

Working stone-line materials

Cord-line chalkers

Bundling articles, details of, or auxiliary devices used in, bundling machines, securing ends of binding material by twisting

Bundling articles by twisting e.g. wire

Conveying in general

Lifting in general

B66

Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof for connection to anchor inserts embedded in concrete structures

Composition of concrete

Construction and surfacing of floorings made of similar material to roads or pavements

Road building

Barrages

Foundations

Devices for solidifying also soil

Ducts specially adapted to be used in prestressed construction

Anchoring devices specially adapted to be used in prestressed construction

Connections of reinforcing elements and spacers

Devices or arrangements allowing walking on the roof or in the gutter

Finishing work

Implements for after-treatment of plaster or the like, e.g. smoothing-tools, profile trowels

Adjusting tools, templates for coverings or linings

Implements for finishing work on buildings, for laying flooring of masses made in situ, e.g. smoothing tools

Component parts or accessories for scaffolds

Cores for anchor holes or the like

Struting existing buildings

Construction props or struts in general

Consoles; Brackets for scaffoldings

Canopies for scaffolds

Canopies for scaffolds

Devices for erecting fences

Concrete pumps

F04

Measuring instruments

G01

Special rules of classification within this group

E04G 21/122, B65B 13/28: Bundling machines specific for bundling reinforcement bars in position are classified in E04G 21/125; Bundling machines in general are classified in B65B 13/28.

E04G 21/142, E04G 15/04: Core for the anchors are classified in E04G 15/04; Building elements with the anchors per se are classified in E04G 21/142.

E04G 21/142, B66C 1/666: Building elements with the anchors per se are classified in E04G 21/142; Features used to attach the sling to the anchor are classified in B66C 1/666.

E04G 21/24, E04G 5/12: Details of scaffolds' canopies should be classified in E04G 5/12; Details about the use of scaffoldings with canopies to protect buildings during construction should be classified in E04G 21/24.

E04G 21/3204, E04G 3/00, E04G 5/06: Consoles or brackets to be fastened directly to the building and supporting persons performing their normal work are classified in E04G 3/00; Consoles or brackets to be fastened directly to the building with the function of preventing or catching a fall and without the function of supporting the persons performing their normal work are classified in E04G 21/3204; Consoles for scaffoldings are classified in E04G 5/06.

E04G 21/3204, E04G 5/00: Safety or protective measures against falling down for persons during the erection of scaffolding should be classified in E04G 5/00.

E04G 21/3204, A62B 1/00, A62B 35/00: Safety or protective measures against falling down for persons during the construction of buildings are classified in E04G 21/3204; Safety or protective measures against falling down for persons in general are classified in A62B 1/00, A62B 35/00.

E04G 21/3204, E04D 13/12: Safety or protective measures against falling down for persons during the construction of buildings are classified in E04G 21/3204; Devices or arrangements allowing walking on the roof or in the gutter are classified in E04D 13/12.

Working measures on existing buildings, ({domestic cleaning of walls or floors A47L 11/00; grinding floors or walls B24B 7/18; removing of wall coverings B44C 7/00; removing of paint from surfaces B44D 3/16; electrochemical desalination or re-alkalisation C04B 41/00}; on foundations E02D 35/00, E02D 37/00; in connection with insulations E04B; subsequent or finishing work E04F)
References relevant to classification in this group
This group does not cover:

Domestic washing or cleaning (of e.g. floors or windows)

Cleaning in general

Shearing machines or shearing devices cutting by blades pivoted on a single axis

Grinding floors or walls

Removing of wall coverings

Removing of paint from surfaces

Compositions of filling material

Electrochemical desalination or re-alkalisation

Strengthening, widening, repairing of bridges

Straightening, lifting, or lowering of foundation structures or of constructions erected on foundations

Repair of damaged foundations or foundation structure

Mechanically-driven dredgers or soil shifting machines with arrangements on backhoes for alternate use of different metal-cutting or concrete-crushing implements

Drying damp layers by temporary mechanical ventilation

Reinforcing elements, e.g. for concrete; Auxiliary elements therefor

Finishing work

Struts or props for the construction

Repair or reinforcement of the post or pole

Wrecking of fences

Special rules of classification within this group

E04G 23/002, A47L, B08B: Cleaning of fa├žades is classified in E04G 23/002; Domestic cleaning of e.g. floors and windows, is classified in A47L; Cleaning in general is classified in B08B.

E04G 23/02, C04B 41/00: Electrochemical desalination or re-alkalisation of buildings is classified in C04B 41/00 not in E04G 23/02.

E04G 23/0218, E04C 5/00: Retrofitting an existing building with new or additional reinforcement is classified in E04G 23/0218; Reinforcement to be applied in new building is classified in E04C 5/00.

E04G 23/0218, E02D 35/00, E02D 37/00: Repairing foundations of a building is classified in E02D 35/00 or E02D 37/00 respectively; Repairing a building is classified in E04G 23/02.

E04G 23/02, E04G 23/0218, E04H 12/2292: Repairing of buildings is classified in E04G 23/02, E04G 23/0218, Repairing of posts or poles is classified in E04H 12/2292.

Subject matter relating to working measures on existing buildings which are analogous to those used in constructing new buildings, are classified in the appropriate construction groups.

Glossary of terms
In this group, the following terms (or expressions) are used with the meaning indicated:

Building

In this group, the expression building defines a house, school, a store, etc. In this group, the expression building excludes other specialized civil works constructions such as bridges, dams, oil platform, nuclear plants, etc., working measures on such specialised constructions is usually dealt with in the subclasses/groups relating to these constructions

Shores or struts (specially designed for use in mines E21D 15/00{ ; E04G 21/26, E04G 23/04 take precedence}); Chocks
Definition statement
This group covers:

Shores, struts or chocks for the construction industry.

References relevant to classification in this group
This group does not cover:

Props for mines

Bordering or stiffening the sides of ditches or trenches or narrow shafts for foundations

Supporting structures for shutterings or frames for floors or roofs

Strutting means for wall parts during construction e.g. for holding in position prefabricated walls

Strutting of existing buildings

Special rules of classification within this group

E04G 25/00, E04G 11/48: Structures with features specific for supporting shutterings or frames for floors or roofs are classified in E04G 11/48; Props, struts and chocks for the construction in general are classified in E04G 25/00.

Temporary arrangements for giving access from one level to another for men or vehicles, e.g. steps, ramps (for scaffolds E04G 5/10; gangways B63; lifts B66)
Definition statement
This group covers:

Temporary arrangements for giving access from one level to another for men or vehicles, e.g. steps, ramps, as building implement or building aid.

References relevant to classification in this group
This group does not cover:

Gangways for ships

B63

Lifts

B66

Steps or ladders specially adapted for scaffolds

Ramps

Special rules of classification within this group

E04G 27/00, E04F 11/002: Steps or ramps as construction implements or construction aid are classified in E04G 27/00; Steps or ramps in general are classified in E04F 11/002.

E04G 27/00, E04G 5/10: Steps or ramps as construction implements or construction aid are classified in E04G 27/00; Steps for scaffolds are classified in E04G 5/10.

This page is owned by Office of Patent Classification.
Last Modified: 10/11/2013