Measuring – testing – or signalling instruments – Clock or clock case – Case having geometric configuration in front elevation
Patent
1988-02-09
1991-04-09
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Clock or clock case
Case having geometric configuration in front elevation
Patent
active
D03160424
REFERENCES:
patent: D122309 (1940-09-01), Bruce
patent: D127984 (1941-07-01), Whyte
patent: D208802 (1967-10-01), Laylon
patent: 1925437 (1933-09-01), Drake
patent: 1974409 (1934-09-01), Brower
patent: 2642713 (1953-06-01), Prins
patent: 2749704 (1956-06-01), Heikkila
Swiss Watch & Jewelry Journal-5/6/57, p. 33-Clock.
Jeweler's Circular-Keystone-8/85-p. 163-Clock at bottom.
Ito Kunihiko
Takashima Asao
Adams Bruce L.
Holtje Nelson C.
Seikosha Co. Ltd.
Wilks Van C.
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