Calculator

Details Calculator Calculator

1991-07-01

1993-03-09

Holtje, Nelson C.

Printing and office machinery

Typewriter or calculator

Calculator

Patent

active

D03338312

REFERENCES:
patent: D249091 (1978-08-01), Burtis
patent: D276536 (1984-11-01), Siefert
patent: D294764 (1988-03-01), Fincke
patent: D326471 (1992-05-01), Chen
Hong Kong Enterprise, Jul. 1988, p. 206, round calculator, GE-C123, top left.
Cole-Parmer Co., p. 871, F-timer, top right center.

Affiliated with

Also associated with

Rating

Calculator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Calculator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Calculator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-203032