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TOKINA OPTICAL
3 patents
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US4072405A
Feb 7, 1978
Prism system for use in tricolor separation
TOKINA OPTICAL
48 citations
80
US4306762A
Dec 22, 1981
Reflecting apparatus in an optical system
TOKINA OPTICAL
7 citations
64
US4729643A
Mar 8, 1988
Telephoto zoom lens system for camera
TOKINA OPTICAL
5 citations
59