1. CPC Sections
  2. CPC Section B
  3. CPC Class B27
  4. CPC Subclass B27G
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Version: 2023.05
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CPC
COOPERATIVE PATENT CLASSIFICATION
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B27G
ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS (tools for grinding B24D; sawing tools B27B 33/00; tools for slotting or mortising machines B27F 5/02; tools for the manufacture of wood shavings, chips, powder or the like B27L 11/00); SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS [2018-08]
WARNINGS

  • The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups:
    B27G17/08 covered by B25D 3/00
  • In this subclass non-limiting references (in the sense of paragraph 39 of the Guide to the IPC) may still be displayed in the scheme.
B27G 1/00
Machines or devices for removing knots or other irregularities or for filling-up holes {(filling up cracks or holes in a veneer cutting block B27L 5/00; caulking decks B63B 5/065)} [2013-01]
B27G 3/00
Arrangements for removing bark-zones, chips, waste, or dust, specially designed for use in connection with wood-working machine or in wood-working plants {(B23Q 11/0042 takes precedence)} [2013-01]
B27G 5/00
Machines or devices for working mitre joints with even abutting ends [2018-08]
B27G 5/02
.
for sawing mitre joints; Mitre boxes (guide fences for timber in sawing machines B27B 27/06) [2013-01]
B27G 5/023
. .
{the mitre angle being adjusted by positioning a workpiece relative to a fixed saw} [2013-01]
B27G 5/026
. .
{Mitre boxes} [2013-01]
B27G 5/04
.
for planing, cutting, shearing, or milling mitre joints [2013-01]
B27G 11/00
Applying adhesives or glue to surfaces of wood to be joined [2018-08]
B27G 11/005
.
{Glue guns, glue sprayers} [2013-01]
B27G 11/02
.
Glue vessels; Apparatus for warming or heating glue [2013-01]
Tools (sawing tools B27B 33/00; tools for slotting or mortising machines B27F 5/00; tools for the manufacture of wood shavings, chips, powder, or the like B27L 11/00) [2013-01]
B27G 13/00
Cutter blocks; Other rotary cutting tools (B27G 15/00, B27G 17/00 take precedence) [2013-01]
B27G 13/002
.
{Rotary tools without insertable or exchangeable parts, except the chucking part} [2013-01]
B27G 13/005
.
{Tools composed of two or more rotating discs} [2013-01]
B27G 13/007
. .
{which are adjustable relatively to each other (B23Q 17/2283 takes precedence)} [2013-01]
B27G 13/02
.
in the shape of long arbors, i.e. cylinder cutting blocks (B27G 13/12 takes precedence) [2013-01]
B27G 13/04
. .
Securing the cutters by mechanical clamping means [2013-01]
B27G 13/06
. .
Securing the cutters by fluid-pressure clamping means [2013-01]
B27G 13/08
.
in the shape of disc-like members; Wood-milling cutters (B27G 13/12 takes precedence) [2013-01]
B27G 13/10
. .
Securing the cutters, e.g. by clamping collars [2013-01]
B27G 13/12
.
for profile cutting [2013-01]
B27G 13/14
. .
for cutting grooves or tenons [2013-01]
B27G 13/16
. .
for rounding rods, e.g. dowels [2013-01]
B27G 15/00
Boring or turning tools; Augers [2013-01]
B27G 15/02
.
Drills for undercutting holes [2013-01]
B27G 17/00
Manually-operated tools [2013-01]
B27G 17/02
.
Hand planes [2018-08]
B27G 17/025
. .
{for forming profiles on wood; for trimming or chamfering edges} [2013-01]
B27G 17/04
.
Spokeshaves; Scrapers [2013-01]
B27G 17/06
.
Rasps [2013-01]
B27G 19/00
Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws [2018-08]
B27G 19/003
.
{for chain saws (braking devices B27B 17/08)} [2013-01]
B27G 19/006
.
{for reciprocating saws} [2013-01]
B27G 19/02
.
for circular saws [2013-01]
B27G 19/04
. .
for manually-operated power-driven circular saws [2013-01]
B27G 19/06
.
for band or strap saws [2013-01]
B27G 19/08
.
Accessories for keeping open the saw kerf, e.g. riving knives or wedge plates [2018-08]
B27G 19/10
.
Measures preventing splintering of sawn portions of wood [2013-01]
B27G 21/00
Safety guards or devices specially designed for other wood-working machines {auxiliary devices facilitating proper operation of said wood-working machines} [2013-01]
B27G 23/00
Gauging means specially designed for adjusting of tools or guides, e.g. adjusting cutting blades in cutter blocks ({B23Q 17/22 takes precedence; boring templates B23B 49/02}; for guides of sawing machines B27B 27/00) [2013-01]