Measuring – testing – or signalling instruments – Clock or clock case – Simulative
Patent
1988-01-19
1991-01-15
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Clock or clock case
Simulative
Patent
active
D03137562
REFERENCES:
patent: D179340 (1956-12-01), Delpidio
Holtje Nelson C.
Silcon Electronics Company Limited
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