Measuring – testing – or signalling instruments – Clock or clock case – Simulative
Patent
1987-07-27
1991-01-01
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Clock or clock case
Simulative
Patent
active
D03133540
REFERENCES:
patent: D105769 (1937-08-01), Wewetzer
patent: D248369 (1978-07-01), Robertson
patent: D261365 (1981-10-01), Carre
patent: 2845172 (1958-07-01), Fridolph
Dah Sun Electronics Company Limited
Holtje Nelson C.
Watson Gary D.
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