Hand held calculator

Details Hand held calculator Hand held calculator

1979-06-18

1981-12-01

Zarfas, Louis S.

Printing and office machinery

Typewriter or calculator

Calculator

D1801

Patent

active

D02621193

REFERENCES:
patent: D117345 (1939-10-01), Binks
patent: D232943 (1974-09-01), Maeda
Scientific American, 11/1974, vol.231, No. 5, p. 11-Litronix Calculator at top center.
Merchandising, 6/76, p. 89-Sinclair Oxford Line at top right center.

Affiliated with

Also associated with

Rating

Hand held 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 Hand held calculator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hand held calculator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1290779