DIFF Subgroup
G03B 17/425 Full Title
Details of cameras or camera bodies; Accessories therefor (lens hoods or caps G03B11/04) > Interlocking between shutter operation and advance of film or change of plate or cut-film
G03B 17/425 Details of cameras or camera bodies; Accessories therefor (lens hoods or caps G03B11/04) > Interlocking between shutter operation and advance of film or change of plate or cut-film