Photography and optical equipment – Ophthalmic article – Lens
Patent
1997-06-12
1998-07-07
Barkai, Raphael
Photography and optical equipment
Ophthalmic article
Lens
1606
Patent
active
D03959031
REFERENCES:
patent: D51955 (1918-04-01), Desha
patent: D188007 (1960-05-01), Pacelli
patent: D320803 (1991-10-01), Gau
patent: D321198 (1991-10-01), Brown
patent: 1959915 (1934-05-01), Guthrie
patent: 2120365 (1938-06-01), Kriebel
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