Retainer for eyeglasses

Details Retainer for eyeglasses Retainer for eyeglasses

1990-05-29

1992-08-25

Ansher, Bernard

Photography and optical equipment

Optical article not elsewhere specified

Lens or objective

Patent

active

D03289087

REFERENCES:
patent: 1819738 (1931-08-01), Daniels
patent: 2481946 (1949-09-01), Pendleton
patent: 2539922 (1951-01-01), Nyberg
patent: 2660092 (1953-11-01), Bloom
patent: 2704961 (1955-03-01), Weil
patent: 3397026 (1968-08-01), Spina
patent: 3450467 (1969-06-01), Phillips
patent: 3502396 (1970-03-01), Greenberg
patent: 3874776 (1975-04-01), Seron
patent: 3879804 (1975-04-01), Lawrence
patent: 4133604 (1979-01-01), Fuller
patent: 4541696 (1985-09-01), Winger et al.

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