Patent
1985-06-03
1987-01-27
Mathews, A. A.
350318, G03B 1100, G02B 700
Patent
active
046391096
ABSTRACT:
The present invention is directed to an optical accessory for use with photographic apparatus. The accessory is releaseably coupled to the lens system and can releaseably support a plurality of optical elements in relation to the lens system.
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Mathews A. A.
Payne Leslie J.
Polaroid Corporation
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