Measuring – testing – or signalling instruments – Clock or clock case – Changeable exhibitor – e.g. – digital type
Patent
1986-01-10
1989-01-10
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Clock or clock case
Changeable exhibitor, e.g., digital type
D10126
Patent
active
D02993163
REFERENCES:
patent: D217003 (1970-03-01), Windebank
patent: D229436 (1973-11-01), Chow
patent: D242694 (1976-12-01), Thompson
patent: D257963 (1981-01-01), Sticker
patent: D291871 (1987-09-01), Harvey
patent: 4385842 (1983-05-01), Wiesner
Holtje Nelson C.
Simplex Time Recorder Co.
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