Measuring – testing – or signalling instruments – Clock or clock case – Changeable exhibitor – e.g. – digital type
Patent
1979-10-24
1983-06-14
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Clock or clock case
Changeable exhibitor, e.g., digital type
D10 18, D1001
Patent
active
D02693283
REFERENCES:
patent: D189424 (1960-12-01), Miley
patent: D252801 (1979-09-01), Usuda
patent: D255551 (1980-06-01), Hirota
patent: D255996 (1980-07-01), Tamura
patent: D257235 (1980-10-01), Cheung
Jeweler's Circular-Keystone-7/78-p. 152-Clock at lower left.
European Jeweler-5/74-p. 92-Clock at upper right.
Jeweler's Circular-Keystone-11/78-p. 65-Clock at center.
Holtje Nelson C.
Promoters Ltd.
Van Ophem Remy J.
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