Measuring – testing – or signalling instruments – Clock or clock case – Changeable exhibitor – e.g. – digital type
Patent
1987-05-15
1990-10-30
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Clock or clock case
Changeable exhibitor, e.g., digital type
D10 26
Patent
active
D03116913
REFERENCES:
patent: D242028 (1976-10-01), Terada
patent: D250254 (1978-11-01), Booty
patent: D250763 (1979-01-01), Boldt
patent: D256679 (1980-09-01), Vaughan
patent: D273678 (1984-05-01), Nishimoto
patent: D298609 (1988-11-01), Dawson
patent: 3596462 (1971-08-01), Hayes
patent: 3841082 (1974-10-01), Cuevas
patent: 4144664 (1979-03-01), Kurte
Cimtron Corp.
Holtje Nelson C.
Schulman Jerry A.
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