Measuring – testing – or signalling instruments – Clock or clock case – Changeable exhibitor – e.g. – digital type
Patent
1989-05-08
1992-01-21
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Clock or clock case
Changeable exhibitor, e.g., digital type
D10 40
Patent
active
D03232972
REFERENCES:
patent: D128392 (1941-07-01), Gottlieb
patent: D258666 (1981-03-01), Yoshioka
patent: D303771 (1989-10-01), Chan
patent: D303933 (1989-10-01), Iacovelli
patent: D308637 (1990-06-01), Howie
patent: D311342 (1990-10-01), Houlihan
patent: 2721611 (1955-10-01), Gordon
patent: 4262842 (1981-04-01), Grover
Housewares-7/1-7/80-p. 49-Timers at top of bottom-rt ad.
Home Furn. Daily-10/6/86-p. 102-Clock at bottom-left.
Hong Kong Enterprise-11/87, p. 108-Timers.
Dowden Donald S.
Holtje Nelson C.
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