(under subclass 18) Subject matter including means to develop the exposed photosensitive film, usually by immersing it in a solution which chemically reacts therewith to form a visible image of the original on the film.
SEE OR SEARCH THIS CLASS, SUBCLASS:
100, for contact printing machines with flat exposure station including developing processing means.
106, for contact printing machines with curved exposure station including developing processing means.
SEE OR SEARCH CLASS
399, Electrophotography, subject matter under
233+, for electric photos:graphic apparatus utilizing liquid development.
