Measuring – testing – or signalling instruments – Clock or clock case – Combined
Patent
1989-04-17
1991-12-17
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Clock or clock case
Combined
D10 10, D18 2
Patent
active
D03224058
REFERENCES:
patent: D229437 (1973-11-01), Miyamoto
patent: D294573 (1988-03-01), Ohzu
patent: D308638 (1990-06-01), Hongo
patent: D312788 (1990-12-01), Hirota
patent: 4681460 (1987-07-01), Nishimura
Jeweler's Circular-Keystone, 8/72-p. 212-Clock at bottom right.
Adams Bruce L.
Holtje Nelson C.
Seiko Instruments Inc.
Wilks Van C.
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