Photocopying

SECTION I - CLASS DEFINITION

GENERAL STATEMENT OF THE CLASS SUBJECT MATTER

A. This class provides for apparatus and methods for photos:graphically copying information from an original or carrier that is not classified elsewhere, generally employing a concentrated source of light and an image receiving medium with a photosensitive emulsion surface.

B. Various plural and composite types of copies are included such as those involving plural projected images including multicolor and duplex.

C. Copies selective at the operator"s choice are also included where one original of a group of similar originals may be selected for copying.

D. Certain combinations, subcombinations and perfecting features are included such as with film developing or severing, with temperature control, and with a viewing screen. Included also are subcombinations which are peculiar to copies such as holders for the original or photosensitive paper. The class also contains improvement in particular elements of or their relationship to the copies when the elements are claimed in combination with other photos:graphic copying structure. These improvements may be in filters, shutters, gates, reflectors, lens mounts, condensers, or means to convey the original.