Measuring – testing – or signalling instruments – Clock or clock case – Changeable exhibitor – e.g. – digital type
Patent
1987-07-07
1990-08-21
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Clock or clock case
Changeable exhibitor, e.g., digital type
D10 21
Patent
active
D03100324
REFERENCES:
patent: D234578 (1975-03-01), Powers
patent: D245765 (1977-09-01), Yoshida
patent: D246351 (1977-11-01), Yoshida
patent: D263124 (1982-02-01), Dennis
patent: D264944 (1982-06-01), Palmer
patent: D267319 (1982-12-01), Van De Ven
patent: D304018 (1989-10-01), Nomizu
Casio Computer Co. Ltd.
Holtje Nelson C.
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