DIGITAL COMPUTERS IN WHICH ALL THE COMPUTATION IS EFFECTED MECHANICALLY

References relevant to classification in this subclass

This subclass/group does not cover:

Cash registers	G07G 1/00
Computing mechanisms where the output is observed on a scale, like slide rules, are considered analogue computing arrangements	G06G 1/00
Construction of keys, printing mechanisms or other parts of general application to the typewriting or printing art	B41
Details of mechanisms covered by main groups G06C 9/00, G06C 11/00, G06C 15/00 which are applicable to mechanical counters driven only through the lowest denomination	G06M 1/00, G06M 3/00
Score computers for card games	A63F 1/18

Special rules of classification within this subclass

Computing aids in which the computing members form at least part of the displayed result and manipulated directly by hand, e.g. abacus, pocket adding device

References relevant to classification in this subclass

This subclass/group does not cover:

Arrangements for table look-up comprising also computing elements manipulated by hand	G06C 3/00

Informative references

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

Appliances for teaching counting or calculating	G09B 19/02
Indicating or scoring devices for games or players	A63B 71/06
Models for scientific, medical, or mathematical purposes	G09B 23/00
Rosaries	A44C 23/00

Arrangements for table look-up, e.g. menstruation table

Informative references

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

Ovulation period determination in humans	A61B 10/0012
Ovulation period determination in animals	A61D 17/002

Non-functional elements

Input mechanisms

References relevant to classification in this group

This subclass/group does not cover:

Pin carriage	G06C 13/02

Transfer mechanisms, e.g. for transmitting figures from the input mechanism into the computing mechanism

References relevant to classification in this group

This subclass/group does not cover:

Places in relation to which this group is residual	G06C 7/10, G06C 11/00, G06C 15/00

Output mechanism

Informative references

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

Marking record carriers in general, visual presentation in general of results of the mathematical operations	G06K

Storage mechanisms

Informative references

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

Information storage in general	G11
Mechanical counters with input only to the lowest order	G06M

Computing mechanisms; Actuating devices therefor

References relevant to classification in this group

This subclass/group does not cover:

Mechanisms for operating automatically upon more than two numbers otherwise than by repeated addition or subtraction	G06C 21/00

Mechanisms for converting from one notational system to another, i.e. radix conversion

Decimal-point mechanisms; Analogous mechanisms for non-decimal notations

Programming mechanisms for determining steps to be performed by the computing machine, e.g. when a key or certain keys are depressed

References relevant to classification in this group

This subclass/group does not cover:

Mechanisms merely for producing multiplication by repeated addition	G06C 15/08

Driving mechanisms for functional elements

Special rules of classification within this group

Auxiliary functional arrangements, e.g. interlocks

References relevant to classification in this group

This subclass/group does not cover:

Interlocks in keyboards	G06C 7/04

Computing machines characterized by the structural interrelation of their functional units, e.g. invoicing machines

Combinations of computing machines with other machines, e.g. with typewriter, with money-changing apparatus