Stopwatch

Details Stopwatch Stopwatch

1997-02-03

1998-07-21

Holtje, Nelson C.

Measuring, testing, or signalling instruments

Watch, wristwatch or case

D10 40, 1003

Patent

active

D03961931

REFERENCES:
patent: D279173 (1985-06-01), Ketcham
patent: D301014 (1989-05-01), Houlihan
patent: D312215 (1990-11-01), Houlihan
patent: D319788 (1991-09-01), Fukazawa

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