Photography and optical equipment – Optical article not elsewhere specified – Lens or objective
Patent
1984-09-04
1987-09-15
Lucas, Susan J.
Photography and optical equipment
Optical article not elsewhere specified
Lens or objective
Patent
active
D02918943
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Halpern David
Weisenfeld George
Heflin C. E.
International Tropic-Cal, Inc.
Jacobs Marvin E.
Lucas Susan J.
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