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Publication


Featured researches published by David E. Hansen.


Archive | 1993

Storage assemblage for index print sheets and cassettes

David E. Hansen; William H. Valls


Archive | 1989

Apparatus for loading a film cassette into a camera

David E. Hansen


Archive | 1987

Low cost telephoto and normal lens camera with an extendable flash

David E. Hansen; Richard R. Kelbe; Dana Whitney Wolcott


Archive | 1975

Rechargeable power pack

David E. Hansen


Archive | 1969

SLIDABLE COVER AND HANDLE MEMBER FOR PHOTOGRAPHIC CAMERAS

David E. Hansen; Arthur H. Crapsey


Archive | 1988

Mode selector member and finger recess in a camera

David E. Hansen


Archive | 1993

Package for index print sheet and cassette

David E. Hansen; William H. Valls


Archive | 1992

Horizontal/vertical frame viewfinder

David E. Hansen


Archive | 1980

Photographic camera having an electronic flash unit

David E. Hansen


Archive | 1988

Disk film camera

David E. Hansen

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