Magnifier or similar article

Details Magnifier or similar article Magnifier or similar article

1989-09-01

1992-08-25

Burke, Wallace R.

Photography and optical equipment

Optical article not elsewhere specified

Lens or objective

Patent

active

D03289109

REFERENCES:
patent: 60109 (1866-11-01), Woodward
patent: D126411 (1941-04-01), Audette
patent: D130418 (1941-11-01), Reynolds
patent: D145638 (1946-09-01), Rosenberg
patent: D215245 (1969-09-01), Schwab
patent: D243394 (1977-02-01), Nerad et al.
patent: D269275 (1983-06-01), Tweedie
patent: D278348 (1985-04-01), Horgan
patent: D291448 (1987-08-01), Tai-Kam
patent: D296792 (1988-07-01), Lewis
patent: 3166626 (1965-01-01), Vargady
patent: 4662717 (1987-05-01), Yamada et al.
patent: 4709657 (1987-12-01), Gothard
patent: 4893668 (1990-01-01), Homura
Industrial Magnifier Catalog, May 1969, p. 16, Magnifier, Item A circled in middle of page.

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