Wrist watch with electronic calculator

Details Wrist watch with electronic calculator Wrist watch with electronic calculator

1992-11-24

1994-12-27

Holtje, Nelson C.

Measuring, testing, or signalling instruments

Watch, wristwatch or case

Combined

D10 39, D18 2

Patent

active

D03537781

REFERENCES:
patent: D244012 (1977-04-01), Cake
patent: D266491 (1982-10-01), Abe
patent: D267861 (1983-02-01), Ohsawa
patent: D279272 (1985-06-01), Sharpe
patent: D339299 (1993-09-01), Kawashima
patent: 3928960 (1975-12-01), Reese
patent: 5138590 (1992-08-01), Masuda
Swiss Watch & Jewelry Journal--Mar. 1978--p. 386--Watches #20 & 22 at top.

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