US3151722A
(en )
1964-10-06
Spring actuated typewriter action with fault sensing means
GB725828A
(enrdf_load_stackoverflow )
1900-01-01
GB943821A
(en )
1963-12-04
A cash register or similar accounting machine
US1652057A
(en )
1927-12-06
shipley
US3742244A
(en )
1973-06-26
Control means for printing apparatus, in particular for offset printing machines
US2168511A
(en )
1939-08-08
Cash register
US2728435A
(en )
1955-12-27
Repeat operation mechanism for power driven typewriters or like machines
GB650357A
(en )
1951-02-21
Differential setting mechanism for cash registers or similar accounting machines
US2256693A
(en )
1941-09-23
Paper feeding mechanism for statistical machines
US1697992A
(en )
1929-01-08
Typewriter
US2567946A
(en )
1951-09-18
Mechanism for varying the tension of normalizing springs of typewriters or like machines
US3352399A
(en )
1967-11-14
Plural space bar operated mechanism for controlling proportional escapements
US1094561A
(en )
1914-04-28
Recording mechanism for cash-registers.
US1958925A
(en )
1934-05-15
Progressive release lock
US1288095A
(en )
1918-12-17
Registering-machine.
GB629421A
(enrdf_load_stackoverflow )
US1774924A
(en )
1930-09-02
Ehnst kassner
US780272A
(en )
1905-01-17
Tabulating-machine.
US1761719A
(en )
1930-06-03
Cash register
US1843117A
(en )
1932-02-02
Key and type bar action
US1255198A
(en )
1918-02-05
Listing-machine.
US1686325A
(en )
1928-10-02
Case-shift mechanism
US1154551A
(en )
1915-09-21
Type-writer calculating attachment.
US2089310A
(en )
1937-08-10
Bookkeeping machine
US1315144A
(en )
1919-09-02
Overthrow-check for calculating-machines