CPC Subgroup
G03B 19/06 adapted to be loaded with more than one film, e.g. with exposure of one or the other at will (G03B19/07 takes precedence)
Full Title
Cameras (details G03B17/00) > Still-picture cameras > Roll-film cameras > adapted to be loaded with more than one film, e.g. with exposure of one or the other at will (G03B19/07 takes precedence)