3M (from Minnesota Mining & Manufacturing company) is an American enterprise founded in 1902. 3M have been a major manufacturer of film, which is often rebranded for other companies, and various materials involved in film making and photo processing and printing. Among many other products were cameras, microfilm cameras as well as some consumer photo cameras under its own name and others such as the 3M-owned Italian Ferrania and American Revere companies.

Disc film cameras

3M disc 103 f 2,8/ 12,5 mm with flash, motor drive

3M disc 303 f 2,8/ 12,5 mm with flash, sensor, motor drive

3M disc 503 f 2,8/ 12,5 mm fully automatic, motor drive

all made in Hong Kong