Hand held business timer

Details Hand held business timer Hand held business timer

1991-01-30

1993-06-15

Holtje, Nelson C.

Measuring, testing, or signalling instruments

Time-measuring instrument or casing

D10 15, D18 1

Patent

active

D03364410

REFERENCES:
patent: D241954 (1976-10-01), King
patent: D260138 (1981-08-01), Chapman
patent: D274798 (1984-07-01), O'Hara
patent: D276507 (1984-11-01), Nocon
patent: D298416 (1988-11-01), Rarocy
patent: 4017857 (1977-04-01), Evans
patent: 4536646 (1985-08-01), Adams
patent: 4658357 (1987-04-01), Carroll
patent: 4712923 (1987-12-01), Martin
patent: 4858207 (1989-08-01), Buchner
patent: 4962491 (1990-10-01), Schaeffer

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