Casing of electronic calculators

Details Casing of electronic calculators Casing of electronic calculators

1978-08-03

1980-10-28

Krass, Errol A.

Boots, shoes, and leggings

200 5A, 361399, 364712, H05K 702

Patent

active

042310989

ABSTRACT:
Wiring patterns and key contact patterns are directly formed on an inner surface of a casing of an electronic calculator. A printed board or a substrate can be eliminated by mounting electrode elements on the inner surface of the casing to establish electrical connection with the wiring patterns formed on the inner surface of the casing, thereby enabling the reduction of size, especially thickness, of the electronic calculator.

REFERENCES:
patent: 3693775 (1972-09-01), Brooks et al.
patent: 3696411 (1972-10-01), Kilby et al.
patent: 3711626 (1973-01-01), Kilby et al.
patent: 3823309 (1974-07-01), Caruso
patent: 3839785 (1974-10-01), Boulanger
patent: 3846791 (1974-11-01), Foster
patent: 3862382 (1975-01-01), Glaister et al.
patent: 3879586 (1975-04-01), Durocher et al.
patent: 3902789 (1975-09-01), Gerritsma et al.
patent: 3911234 (1975-10-01), Kotaka
patent: 3928736 (1975-12-01), Drage
patent: 3934074 (1976-01-01), Evelove et al.

Affiliated with

Also associated with

Rating

Casing of electronic calculators does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-271855