Inventor

HELLMICK MARK

US3 patents

Patents

3 patents

US5317619AMay 31, 1994

Film changer

MEDRAD INC34 citations90

US5042056AAug 20, 1991

Film changer

MEDRAD INC31 citations90

US4893322AJan 9, 1990

Film changer

MEDRAD INC56 citations90