Registers – Transfer mechanism – Traveling pawl
Patent
1973-11-26
1977-07-19
Malzahn, David H.
Registers
Transfer mechanism
Traveling pawl
G06F 1502
Patent
active
040370925
ABSTRACT:
A calculator has one or more keys which initiate the performance of user-defined subroutines. When the calculator is turned on, the calculator memory is programmed with a predetermined subroutine which may subsequently be changed or replaced by the user.
REFERENCES:
patent: 3588841 (1971-06-01), Ragen
patent: 3760171 (1973-09-01), Wang et al.
Osborne Thomas E.
Stockwell Richard Kent
Barrett Patrick J.
Hewlett--Packard Company
Malzahn David H.
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