US2260970A
(en )
1941-10-28
Impression mechanism
GB821200A
(enrdf_load_stackoverflow )
US2942776A
(en )
1960-06-28
Actuating mechanism for ten key adding machines
GB424149A
(en )
1935-02-15
Improvements in or relating to release control mechanism for calculating machines, accounting machines, and similar machines
US2313982A
(en )
1943-03-16
Accounting machine
US2969176A
(en )
1961-01-24
Signal printing mechanism
US3045799A
(en )
1962-07-24
Keyboard interlock control means
US2945578A
(en )
1960-07-19
Variable spacing mechanism for typewriters
US3295653A
(en )
1967-01-03
Interlocking device for electric typewriters
US2285311A
(en )
1942-06-02
Accounting machine
US3081938A
(en )
1963-03-19
Wai thfr c-tai
US2570931A
(en )
1951-10-09
Printing tabulating mechanism
US2733858A
(en )
1956-02-07
anderson
US2264582A
(en )
1941-12-02
Accounting machine
US3088400A
(en )
1963-05-07
Recording apparatus
US3620446A
(en )
1971-11-16
Printing device for a calculating machine
US2668010A
(en )
1954-02-02
Item retaining mechanism for accounting machines
US3194496A
(en )
1965-07-13
Pin carriage to clutch interlock mechanism in a ten-key adding and subtracting machine
US2827230A
(en )
1958-03-18
Ten key early entry and index retention mechanism
GB457862A
(en )
1936-12-07
Improvements in or relating to tabulator mechanism for typewriting machines
US2786412A
(en )
1957-03-26
Record card controlled statistical machines
US2711855A
(en )
1955-06-28
Automatic non-tabulating mechanism for accounting machines
US1931126A
(en )
1933-10-17
Tally roll mechanism for accounting machines
US3601044A
(en )
1971-08-24
Printer mechanism
US2620973A
(en )
1952-12-09
Type bar restraining means