Measuring – testing – or signalling instruments – Watch – wristwatch or case – Wrist type
Patent
1988-07-13
1991-08-13
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Watch, wristwatch or case
Wrist type
Patent
active
D03190277
REFERENCES:
patent: D157607 (1950-03-01), Lachman
patent: D266058 (1982-09-01), Kanoui
patent: D289503 (1987-04-01), Ludvig et al.
patent: D289615 (1987-05-01), Thomke
patent: D293419 (1987-12-01), Tanaka
patent: 811767 (1906-02-01), Drews
patent: 2191020 (1940-02-01), Kaufmann
Jeweler's Circular & Keystone, Basel '79, 6/1979, p. 138.
Hong Kong Enterprise, Watches, 7/1988, p. 179.
Swiss Watch and Jewelry Journal, Gold Coins Measure Time, 1/1981, p. 20.
Swiss Watch and Jewelry Journal, Ravisa Watches, 1/1985, p. 10.
Davis Antonie D.
Holtje Nelson C.
Roventa-Henex SA
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