Magnifying spectacle

Photography and optical equipment – Ophthalmic article – Eyeglasses – eyewear – or frame therefor

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Patent

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D03620093

REFERENCES:
patent: D166152 (1952-03-01), Foster
patent: D210418 (1968-03-01), Bloch
patent: D280830 (1985-10-01), Levoy
patent: D323334 (1992-01-01), Sugarman
patent: 2100940 (1937-11-01), Coleman
patent: 3519339 (1970-07-01), Hutchinson
patent: 5088809 (1992-02-01), Portney
Optical Journal & Review of Optometry Sep. 15, 1970 p. 33 #1.
Optician Dec. 15, 1978 p. 38 top of page.

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