DIFF Subgroup
G03B 27/06 for automatic repeated copying of the same original
Introduced: September 1968
Full Title
Photographic printing apparatus > Exposure apparatus for contact printing > Copying apparatus without a relative movement between the original and the light source during exposure, e.g. printing frame or printing box > for automatic repeated copying of the same original
No child classifications to compare. This is a leaf node in both IPC and CPC.