1989-01-17
1991-11-19
Perkey, W. B.
354159, 354213, 354222, G03B 1718, G03B 100, G03B 1302
Patent
active
050669710
ABSTRACT:
A camera has a changeable picture frame forming means for changing the picture frame size and features the prohibition of actuating the changeable picture frame forming means during the use of one and the same roll of film.
REFERENCES:
patent: 4384774 (1983-05-01), Tuck
patent: 4436399 (1984-03-01), Koch et al.
patent: 4557591 (1985-12-01), Serizawa et al.
patent: 4611895 (1986-09-01), Seely
patent: 4652104 (1987-03-01), Harvey
patent: 4716427 (1987-12-01), Shyu
patent: 4843418 (1989-06-01), Taniguchi et al.
Canon Kabushiki Kaisha
Perkey W. B.
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