Digital clock

Details Digital clock Digital clock

1990-01-26

1992-08-18

Holtje, Nelson C.

Measuring, testing, or signalling instruments

Clock or clock case

Changeable exhibitor, e.g., digital type

D10 28

Patent

active

D03287130

REFERENCES:
patent: D228514 (1973-10-01), Watanabe
patent: D239091 (1976-03-01), Toyoshima
patent: D239201 (1976-03-01), Ohta
patent: D245198 (1977-07-01), Terada
patent: D292005 (1987-09-01), McQuarrie
patent: D292415 (1987-10-01), Tsukada
patent: D304599 (1989-11-01), Cunnane et al.
patent: 3759030 (1973-09-01), Wakabayashi
Design News--Jan. 1977--p. 24--Clock at bottom-right.
European Jewelers--Apr. 1977--p. 97--Clock at bottom-left.
Merchandising--Aug. 1983--p. 20--Clock at top-left.

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