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PCE
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DIFF Subgroup
B23Q 35/40

involving optical or photoelectrical systems

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually > using a feeler or the like travelling along the outline of the pattern, model or drawing; Feelers, patterns, or models therefor > Feelers; Feeler units > designed for sensing the pattern, model, or drawing without physical contact > involving optical or photoelectrical systems

CPC:

Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually > using a feeler or the like travelling along the outline of the pattern, model or drawing; Feelers, patterns, or models therefor > Feelers; Feeler units > designed for sensing the pattern, model, or drawing without physical contact (sensing by means of a fluid jet B23Q35/36) > involving optical or photoelectrical systems

No child classifications to compare. This is a leaf node in both IPC and CPC.