Measuring – testing – or signalling instruments – Watch – wristwatch or case – Wrist type
Patent
1979-06-14
1982-05-25
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Watch, wristwatch or case
Wrist type
D1002
Patent
active
D02645610
REFERENCES:
patent: 3768247 (1973-10-01), Fujita
European Jeweler-11/77-p. 78-Calculator Watch at top-right.
Jeweler's Circular-Keystone-3/76-Comb. Watch at top-left.
Hewlett-Packard Brochure-3/77-HP-01 Calculator Watch.
Holtje Nelson C.
Kabushiki Kaisha Suwa Seikosha
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