Calculation system utilizing definable keys

Details Calculation system utilizing definable keys Calculation system utilizing definable keys

1983-09-27

1985-03-26

Malzahn, David H.

Boots, shoes, and leggings

364200, G06F 1506

Patent

active

045077436

ABSTRACT:
In a preferred form of the present invention, upon operation of a particular key a calculator runs a stored program, beginning with a step in the stored program as selected by that particular key. If the program contains a particular instruction at that beginning step, then the calculator serves to insert previous information displayed before the operation of the particular key into a variable column as specified by the instruction.

REFERENCES:
patent: 4145742 (1979-03-01), Olander, Jr. et al.
patent: 4152769 (1979-05-01), Olander, Jr. et al.

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