Baseboards, masking frames, or other holders for the sensitive material (G03B27/53 takes precedence )

Full Title

Photographic printing apparatus > Projection printing apparatus, e.g. enlarger, copying camera > Details > Baseboards, masking frames, or other holders for the sensitive material (G03B27/53 takes precedence )

Child Classifications

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• G03B 27/581
• G03B 27/582
• G03B 27/583
• G03B 27/585
• G03B 27/587
• G03B 27/60 using a vacuum or fluid pressure