DIFF Subgroup
G03B 27/54 Lamp housings; Illuminating means
Introduced: September 1968
Full Title
Photographic printing apparatus > Projection printing apparatus, e.g. enlarger, copying camera > Details > Lamp housings; Illuminating means
Of 2 combined children, 0 exist in both systems.
2 codes are CPC-only extensions.
Child Classifications
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