Inventor
ALTMANN ERIK
5 patents
Patents
5 patentsUS4398679AAug 16, 1983
Externally hooked storage spool for rotary winding on an unwinding
AGFA GEVAERT AG11 citations70
US4181271AJan 1, 1980
Spool with external hooks for winding material in the form of tape
AGFA GEVAERT AG12 citations70
US4333615AJun 8, 1982
Film cassette for roll films
AGFA GEVAERT AG4 citations59
US4200247AApr 29, 1980
Cassette for roll films, with a catch for preventing drawing in of the end of the film
AGFA GEVAERT AG2 citations59
US4148449AApr 10, 1979
Photographic film cassette incorporating a film lock
AGFA GEVAERT AG2 citations59