Photography and optical equipment – Ophthalmic article – Element or attachment
Patent
1994-03-18
1996-03-12
Deshmukh, Prabhakar G.
Photography and optical equipment
Ophthalmic article
Element or attachment
Patent
active
D03678768
REFERENCES:
patent: D164889 (1951-10-01), Weissman
patent: D166578 (1952-04-01), Splaine
patent: 4618226 (1986-10-01), Sartor et al.
patent: 4976529 (1990-12-01), Segoshi et al.
patent: 5080476 (1992-01-01), Monin
Barkai R.
Deshmukh Prabhakar G.
SIPAL S.A.
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