Imitation gem

Details Imitation gem Imitation gem

1984-08-06

1986-08-12

Shay, F. Barry

Jewelry

Gem

428 15, 501 86, A44C 1700

Patent

active

046048766

ABSTRACT:
An imitation gem consisting of a semi shell of a transparent plastic material with concave inner and convex outer surfaces has light reflecting and light refracting facets formed on both its inner concave and outer convex surfaces. The open end of the semi shell is closed by a cover which is also provided with facets so as to further improve light reflection and refraction.

REFERENCES:
patent: 888346 (1908-05-01), McDearmon
patent: 1548646 (1925-08-01), Akeson
patent: 2270270 (1942-01-01), Clare
patent: 2354067 (1944-07-01), Schmalz
patent: 2699706 (1955-01-01), Boone

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