Photography and optical equipment – Optical article not elsewhere specified – Lens or objective
Patent
1987-04-09
1990-02-20
Burke, Wallace R.
Photography and optical equipment
Optical article not elsewhere specified
Lens or objective
Patent
active
D03061752
REFERENCES:
patent: D135421 (1943-04-01), Austin
patent: D143744 (1946-02-01), Miles
patent: D168546 (1953-01-01), Igler et al.
patent: D246047 (1977-10-01), Zalman
patent: 2150916 (1939-03-01), Forgea
Francis David F.
Steel Veronica G.
Burke Wallace R.
Combined Optical Industries Limited
Reid Stella M.
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