US1286186A
(en )
1918-11-26
Variable escapement.
GB384759A
(enrdf_load_stackoverflow )
GB943821A
(en )
1963-12-04
A cash register or similar accounting machine
US2183920A
(en )
1939-12-19
Combined typewriting and account
US3034426A
(en )
1962-05-15
Accounting machine with punch and printer for cards
US2718354A
(en )
1955-09-20
sharpe
US2229553A
(en )
1941-01-21
Listing adding machine
US2707076A
(en )
1955-04-26
H sharpe
US1854748A
(en )
1932-04-19
Paper carriage escapement disabling mechanism
US1742531A
(en )
1930-01-07
Eliminating mechanism fob
US1214491A
(en )
1917-01-30
Combined type-writing and computing machine.
US780272A
(en )
1905-01-17
Tabulating-machine.
US1279687A
(en )
1918-09-24
Combined type-writing and computing machine.
US711487A
(en )
1902-10-21
Tabulating-machine.
US963727A
(en )
1910-07-05
Calculating attachment for type-writing machines.
US1742535A
(en )
1930-01-07
Word-printing mechanism
US2980321A
(en )
1961-04-18
Shifting device for sliding carriages in office machines
US1188933A
(en )
1916-06-27
Combined type-writing and computing machine.
US1294727A
(en )
1919-02-18
Combined type-writing and computing machine.
US1442576A
(en )
1923-01-16
Combined typewriting and computing machine
US1013243A
(en )
1912-01-02
Calculator.
US1333307A
(en )
1920-03-09
Horizontal ruling mechanism for calculating and like machines
GB612392A
(en )
1948-11-11
Improvements in or relating to accounting machines and similar calculating machines
GB491465A
(enrdf_load_stackoverflow )
US2689032A
(en )
1954-09-14
Key operated mechanism for type writing or like machines