Photography and optical equipment – Ophthalmic article – Element or attachment
Patent
1997-11-17
1998-12-01
Barkai, Raphael
Photography and optical equipment
Ophthalmic article
Element or attachment
D16900, D16304, 1606
Patent
active
D04019601
REFERENCES:
patent: D183845 (1958-11-01), Liautaud
patent: D193872 (1962-10-01), Petitto
patent: D228806 (1973-10-01), Harrell
patent: 3238005 (1966-03-01), Petitto
patent: 5416537 (1995-05-01), Sadler
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