Electronic calculator with function keys

Details Electronic calculator with function keys Electronic calculator with function keys

1976-03-19

1977-10-11

Malzahn, David H.

Boots, shoes, and leggings

G06F 738

Patent

active

040537536

ABSTRACT:
In an electronic desk-top calculator, there are provided input means including at least one function key, a plurality of arithmetical operation keys and a plurality of numeric keys, and means for effecting functional operation by depression of the function key, one of the numeric keys and one of said arithmetic operation keys, in such order.

REFERENCES:
patent: 3760171 (1973-09-01), An Wang et al.
patent: 3839630 (1974-10-01), Olander, Jr. et al.
patent: 3902054 (1975-08-01), Cochran et al.
patent: 3971925 (1976-07-01), Wenninger et al.
PDP-8/E & PDP-8/M Small Computer Handbook, 1972, Digital Equipment Corp. 1971, pp. 2-5 thru 2-7.
Programming Languages, Digital Equipment Corp., 1972, pp. 12-6, 12-34, 12-35, 12-57 & 12-58.

Affiliated with

Also associated with

Rating

Electronic calculator with function keys does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-740920