Diamond

Details Diamond Diamond

1993-04-01

1995-01-03

Seifert, Ralf T.

Jewelry, symbolic insignia, and ornaments

Jewelry

Element or attachment

Patent

active

D03540146

REFERENCES:
patent: D88265 (1932-11-01), Stern
patent: D88266 (1932-11-01), Stern
patent: D141258 (1945-05-01), Fine
patent: D143471 (1946-01-01), Fine
patent: D286387 (1986-10-01), Ishida
patent: D287232 (1986-12-01), Ishida
patent: D297718 (1988-09-01), Cohen et al.
patent: D311881 (1990-11-01), Cohen et al.
patent: D316984 (1991-05-01), Cohen
patent: D340666 (1993-10-01), Schachter
patent: D340668 (1993-10-01), Schachter
patent: D343141 (1994-01-01), Schachter
patent: 3788097 (1974-01-01), Elbe
Jeweller's Circular Keystone Part II, "Some of the Principal Shapes into Which Diamonds Are Cut", upper half of p. 78, "English Round Cut Brilliant" 63/32, Apr. 1966.
F. G. Herbert, Gemstones, published by Methuen & Co. 1940, AU 292, D11-90, pp. 110-114.
French Magazine "La Coiffure de Paris", published on Jun. 1, 1980, p. 79.

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