Inventor
CZUMAK FRANK M
13 patents
Patents
13 patentsUS3951530AApr 20, 1976
Method and apparatus for depositing processing fluid on cassette contained film strips
POLAROID CORP12 citations72
US4371249AFeb 1, 1983
Film processing kit
POLAROID CORP8 citations70
US4568163AFeb 4, 1986
Camera back
POLAROID CORP6 citations61
US4106042AAug 8, 1978
Multipurpose film cassette having a processor disabling valve retention arrangement
POLAROID CORP2 citations61
US4566770AJan 28, 1986
Mount for transparency film frame
POLAROID CORP4 citations60
US4209235AJun 24, 1980
Film cassette processor having capillary grooves
POLAROID CORP2 citations60
US4767691AAug 30, 1988
Photographic film assemblage
POLAROID CORP2 citations56
US4238145ADec 9, 1980
Multipurpose film cassette having one-piece process mode switch
POLAROID CORP1 citations50
US4721974AJan 26, 1988
Film processing kit
POLAROID CORP0 citations39
US4248507AFeb 3, 1981
Multipurpose photographic film handling cassette having an improved film processor arrangement
POLAROID CORP0 citations39
US4155634AMay 22, 1979
Film cassette contained processing fluid applicator having converging fluid channel
POLAROID CORP0 citations39
US4080614AMar 21, 1978
Photographic cassette having pressure plate release of a processor disabling valve
POLAROID CORP0 citations39
US4630914ADec 23, 1986
Photographic film frame ejector
POLAROID CORP0 citations36