Measuring – testing – or signalling instruments – Watch – wristwatch or case – Wrist type
Patent
1980-09-18
1982-08-17
Spangler, Robert C.
Measuring, testing, or signalling instruments
Watch, wristwatch or case
Wrist type
D1002
Patent
active
D02657996
REFERENCES:
patent: D75549 (1928-06-01), Conant
patent: D256677 (1980-09-01), Muramatsu
patent: D261113 (1981-10-01), Fukumura
patent: D261734 (1981-11-01), Onodera
Jeweler's Circular-Keystone, Mar. 1979, p. 34, Watch in bottom left corner.
Kabushiki Kaisha Daini Seikosha
Spangler Robert C.
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