Measuring – testing – or signalling instruments – Clock or clock case – Changeable exhibitor – e.g. – digital type
Patent
1986-02-21
1988-09-20
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Clock or clock case
Changeable exhibitor, e.g., digital type
Patent
active
D02977125
REFERENCES:
patent: D210020 (1968-01-01), Mackay
patent: D264944 (1982-06-01), Palmer
patent: D269328 (1983-06-01), Cheung
patent: D270522 (1983-09-01), Cook
Swiss Watch & Jewelry Journal-4/79-p. 405-Dig. Clocks at bottom.
Haber Barry M.
Rittenhouse James M.
Wong Ting W.
Conair Corporation
Holtje Nelson C.
Johnson Haynes N.
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