Patent
1990-09-11
1991-12-03
Gellner, Michael L.
G03B 1708
Patent
active
050703480
ABSTRACT:
A waterproof and/or water-resistant camera including a movable photographing lens barrel which moves in the optical axis direction of the camera, an air breathing passage for connecting the interior and the exterior of the camera, an air-permeable and water-impermeable filter provided in the air breathing passage, and a protection cover which covers the air-permeable and water-impermeable filter to constitute an air connecting assembly for the air-permeable and water-impermeable filter.
REFERENCES:
patent: 4312580 (1982-01-01), Schwomma et al.
patent: 4763145 (1988-08-01), Takamura et al.
patent: 4771299 (1988-09-01), Gell
patent: 4771320 (1988-09-01), Gell
patent: 4931816 (1990-06-01), Kano et al.
patent: 4963902 (1990-10-01), Fukahori
United Kingdom Search Report Application No. 90 19906.8, searched Dec. 11, 1990.
Hayakawa Masahiro
Kosako Kosei
Asahi Kogaku Kogyo Kabushiki Kaisha
Gellner Michael L.
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