Photography and optical equipment – Ophthalmic article – Element or attachment
Patent
1993-12-23
1995-02-14
Ansher, Bernard
Photography and optical equipment
Ophthalmic article
Element or attachment
Patent
active
D03554295
REFERENCES:
patent: D310839 (1990-09-01), Bolle
patent: 1335823 (1920-04-01), Day
patent: 1701009 (1929-02-01), Nerney
patent: 1918982 (1933-07-01), Poeton
patent: 4720186 (1988-01-01), Douillard
patent: 4781450 (1988-11-01), Danloup
patent: 4898460 (1990-02-01), Magninat
patent: 4955708 (1990-09-01), Kahaney
Surfer Jun. 1989 p. 71 top of page.
Ansher Bernard
Barkai R.
Hudson Optical Corporation
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