GB810798A
(enrdf_load_stackoverflow )
US2012317A
(en )
1935-08-27
Paper equipment for accounting machines
US2930523A
(en )
1960-03-29
Totalizer control mechanism for accounting machines
US2216627A
(en )
1940-10-01
Combined typewriting and computing
US2088662A
(en )
1937-08-03
Accounting machine
US2186347A
(en )
1940-01-09
Combined typewriting and computing machine
US2248202A
(en )
1941-07-08
Combined typewriting and computing
US3161354A
(en )
1964-12-15
Tabulation control mechanism for accounting machines
US2265743A
(en )
1941-12-09
pitman
US2025956A
(en )
1935-12-31
Computing machine
US2650758A
(en )
1953-09-01
Automatic skip-tab tabulating mechanism for accounting machines
US2733859A
(en )
1956-02-07
landsiedel
US3021935A
(en )
1962-02-20
Mechanical interlock device
US1223871A
(en )
1917-04-24
Combined type-writing and computing machine.
GB190718058A
(en )
1908-10-08
Improvements in and relating to Applications of Computing Mechanism to Typewriters for the purpose of Listing and Reckoning Accounts in Column Form.
US1388253A
(en )
1921-08-23
Typewriting-machine
US2170183A
(en )
1939-08-22
Cash register and accounting
US1602827A
(en )
1926-10-12
Adolph gk xthpetz
US2684808A
(en )
1954-07-27
Automatic spacing stroke control mechanism for accounting machines
US2362222A
(en )
1944-11-07
Accounting machine
US1288288A
(en )
1918-12-17
Tally-roll attachment for calculating-machines.
US1854177A
(en )
1932-04-19
Total printing mechanism
US2214082A
(en )
1940-09-10
Unitfd statfs patfnt offici
US1317466A
(en )
1919-09-30
Calculating machine
GB414931A
(enrdf_load_stackoverflow )