GB1072534A
(enrdf_load_stackoverflow )
US2726037A
(en )
1955-12-06
landsiedel
US2989231A
(en )
1961-06-20
Calculating machine
US3057549A
(en )
1962-10-09
wagemann
US3079073A
(en )
1963-02-26
Heinzeetal
US2833467A
(en )
1958-05-06
Calculating machine-
US2665070A
(en )
1954-01-05
Binary-octal-decimal computer
US2992773A
(en )
1961-07-18
Multiplication mechanism for adding machines
US2645422A
(en )
1953-07-14
Carriage position control means for
US3374946A
(en )
1968-03-26
Computer for multiplication with abbreviated,continual addition or subtraction
US3082942A
(en )
1963-03-26
Schenk
US3130904A
(en )
1964-04-28
- calculating machine with storing mechanism
US3086701A
(en )
1963-04-23
Capellaro
GB1077819A
(enrdf_load_stackoverflow )
US2268374A
(en )
1941-12-30
Calculating machine
US3674202A
(en )
1972-07-04
Calculating machine
GB1156874A
(en )
1969-07-02
Currency-Convertible Mechanism for an Accounting Machine.
US3419212A
(en )
1968-12-31
Calculating mechanisms for calculating machines
US899398A
(en )
1908-09-22
Adding-machine.
US3476313A
(en )
1969-11-04
Calculating machine with short cut multiplication
GB1055365A
(enrdf_load_stackoverflow )
US3432094A
(en )
1969-03-11
Four-species calculating machine
US3423018A
(en )
1969-01-21
Ten key calculating machine adapted to effect multiplications as well as divisions
GB352731A
(enrdf_load_stackoverflow )
US3397837A
(en )
1968-08-20
Printing calculating machine having a transversely movable register