Photography and optical equipment – Ophthalmic article
Patent
1990-04-25
1991-11-19
Ansher, Bernard
Photography and optical equipment
Ophthalmic article
Patent
active
D03217000
REFERENCES:
patent: D204695 (1966-05-01), Glass
patent: D204814 (1966-05-01), Glass
patent: 3526449 (1970-09-01), Bolle
patent: 3672750 (1972-06-01), Hagen
Baush and Lomb Catalog, 1935, p. 41, #3J17, (Spectacles Digest).
Ansher Bernard
Barkai R.
Litman Richard C.
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