Photography and optical equipment – Optical article not elsewhere specified – Lens or objective
Patent
1986-08-28
1989-01-10
Burke, Wallace R.
Photography and optical equipment
Optical article not elsewhere specified
Lens or objective
D16107, D16129
Patent
active
D02993562
REFERENCES:
patent: D150474 (1948-08-01), Stangl
patent: D223296 (1972-04-01), Lee
patent: D254377 (1980-03-01), Czerefkow
patent: 1612750 (1926-12-01), Stake
patent: 2660092 (1953-11-01), Bloom
patent: 2704961 (1955-03-01), Weil
patent: 4133604 (1979-01-01), Fuller
Burke Wallace R.
Heflin Clare E.
Powder Bleu U.S.A. Inc.
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