Projection printing apparatus, e.g. enlarger, copying camera

Introduced: September 1968

Full Title

Photographic printing apparatus > Projection printing apparatus, e.g. enlarger, copying camera

Of 8 combined children, 6 exist in both systems.

2 codes are CPC-only extensions.

4 shared codes have differing titles between IPC and CPC.

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G03B 27/323 CPC only CPC only
G03B 27/326 CPC only CPC only
G03B 27/34 Means for automatic focusing therefor IPC+CPC Available in IPC and CPC
G03B 27/42 for automatic sequential copying of the same original (G03B27/34, G03B27/53 take precedence) +2 CPC IPC+CPC Available in IPC and CPC
G03B 27/44 for multiple copying of the same original at the same time (G03B27/34, G03B27/53 take precedence) IPC+CPC Available in IPC and CPC
G03B 27/46 for automatic sequential copying of different originals, e.g. enlargers, roll film printers (G03B27/34, G03B27/50, G03B27/53 take precedence) +1 CPC IPC+CPC Available in IPC and CPC
G03B 27/50 with slit or like diaphragm moving over original for progressive exposure (G03B27/34 takes precedence ) IPC+CPC Available in IPC and CPC
G03B 27/52 Details +2 CPC IPC+CPC Available in IPC and CPC

Class G03,2013–2023, worldwide · Source: EPO PATSTAT

Class G03,2013–2023, worldwide · Source: EPO PATSTAT