Pipe fitter/plumber's calculator

Details Pipe fitter/plumber's calculator Pipe fitter/plumber's calculator

2007-04-10

2007-04-10

Veynar, Caron D. (Department: 2913)

Printing and office machinery

Typewriter or calculator

Calculator

Design Patent

active

29203430

CLAIM:
The ornamental design for a pipe fitter/plumber's calculator, as shown and described.

REFERENCES:
patent: D263466 (1982-03-01), Hiraki
patent: 4367526 (1983-01-01), McGeary et al.
patent: D298544 (1988-11-01), Gerardy
patent: D307890 (1990-05-01), Kim
patent: D317620 (1991-06-01), Kusmer
patent: 5313396 (1994-05-01), Terpstra et al.
patent: D362013 (1995-09-01), Benjamin
patent: D385295 (1997-10-01), Osiecki et al.
patent: D389858 (1998-01-01), Crooks et al.
patent: D408440 (1999-04-01), Matsuda et al.
patent: D410440 (1999-06-01), Carnell
patent: D430195 (2000-08-01), Thompson et al.
patent: D432560 (2000-10-01), Endrulat

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