Portable sport timer

Details Portable sport timer Portable sport timer

1995-08-29

1997-02-18

Holtje, Nelson C.

Measuring, testing, or signalling instruments

Time-measuring instrument or casing

D10 30

Patent

active

D03780651

REFERENCES:
patent: D218344 (1970-08-01), Baumann
patent: D232815 (1974-09-01), Niwell
patent: D252614 (1979-08-01), Thornberry
patent: D337953 (1993-08-01), Verborn
patent: D366837 (1996-02-01), Cooney
patent: 3090192 (1963-05-01), Kraft

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