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Ashai Optical Co., Ltd.
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Lens cap
Patent number
4,600,278
Issue date
Jul 15, 1986
Ashai Optical Co., Ltd.
Taizo Saito
G02 - OPTICS
Information
Patent Grant
Removable coupling device between a photographic camera and an acce...
Patent number
4,455,723
Issue date
Jun 26, 1984
Ashai Optical Co., Ltd.
Junji Umetsu
A45 - HAND OR TRAVELLING ARTICLES