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PCE
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Search for IPC and CPC classification codes or keywords
DIFF Subgroup
G03B 27/50

with slit or like diaphragm moving over original for progressive exposure (G03B27/34 takes precedence )

Introduced: September 1968

Title

Titles differ between systems:

IPC: with slit or like diaphragm moving over original for progressive exposure

CPC: with slit or like diaphragm moving over original for progressive exposure (G03B27/34 takes precedence )

Full Title

Full titles differ between systems:

IPC:

Photographic printing apparatus > Projection printing apparatus, e.g. enlarger, copying camera > with slit or like diaphragm moving over original for progressive exposure

CPC:

Photographic printing apparatus > Projection printing apparatus, e.g. enlarger, copying camera > with slit or like diaphragm moving over original for progressive exposure (G03B27/34 takes precedence )

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