US2397745A
(en )
1946-04-02
Adding machine
US2339616A
(en )
1944-01-18
Calculating machine
GB1082776A
(en )
1967-09-13
Keyboard mechanism for generating code combinations
US2087182A
(en )
1937-07-13
Listing adding machine
US1773026A
(en )
1930-08-12
For calculators
GB909935A
(en )
1962-11-07
Calculating or similar accounting machine
US3013717A
(en )
1961-12-19
Electromechanical controls for calculating machines
US2994474A
(en )
1961-08-01
fleming
US2210065A
(en )
1940-08-06
Cash register
US3072329A
(en )
1963-01-08
Control for motor operated business machines
GB479234A
(cg-RX-API-DMAC10.html )
1900-01-01
US3186640A
(en )
1965-06-01
Control mechanism for calculating machines
GB650357A
(en )
1951-02-21
Differential setting mechanism for cash registers or similar accounting machines
GB1122887A
(en )
1968-08-07
A data entry machine
GB417991A
(cg-RX-API-DMAC10.html )
1900-01-01
US3331554A
(en )
1967-07-18
Calculating machine
US3537641A
(en )
1970-11-03
Totalizer control mechanism
GB423169A
(en )
1935-01-24
Improvements in or relating to calculating and the like machines
GB672804A
(cg-RX-API-DMAC10.html )
GB753841A
(cg-RX-API-DMAC10.html )
GB293080A
(cg-RX-API-DMAC10.html )
GB435286A
(cg-RX-API-DMAC10.html )
GB516693A
(cg-RX-API-DMAC10.html )
GB191107105A
(en )
1911-08-09
Improvements in and relating to Adding Mechanism for Cash Registers and the like.
GB675363A
(cg-RX-API-DMAC10.html )