US3729081A
(en )
1973-04-24
Typewriter carriage and ribbon field control for error correction
GB1187507A
(en )
1970-04-08
Printer
GB262919A
(enrdf_load_stackoverflow )
GB1048275A
(en )
1966-11-16
Improvements in or relating to keyboard mechanism for an electric writing machine
GB676195A
(en )
1952-07-23
Improvements in and relating to typing and justifying machines
US2905303A
(en )
1959-09-22
Escapement pawl control
US2965212A
(en )
1960-12-20
Carriage tabulating mechanism suitable for proportional spacing typewriter
US2945578A
(en )
1960-07-19
Variable spacing mechanism for typewriters
US2872862A
(en )
1959-02-10
Symbol printing mechanisms in listing calculating machines and the like
US2633966A
(en )
1953-04-07
Operation control interlocking mechanism for typewriters or like machines
US2885052A
(en )
1959-05-05
Device to locate a typewriter carriage at multi-incremental feed stations
GB410381A
(en )
1934-05-17
Improvements relating to power actuated tabulator mechanism for typewriting and like machines
US3814228A
(en )
1974-06-04
Repeat mechanism for a printer
US2865488A
(en )
1958-12-23
Proportional letter feed mechainism
US1943548A
(en )
1934-01-16
Combined typewriting and computing machine
US1433737A
(en )
1922-10-31
Combined typewriting and computing machine
GB1109059A
(en )
1968-04-10
A typewriter or like office machine
US2570931A
(en )
1951-10-09
Printing tabulating mechanism
US1388253A
(en )
1921-08-23
Typewriting-machine
US1798707A
(en )
1931-03-31
Typewriter word counter
US1302159A
(en )
1919-04-29
Combined type-writing and computing machine.
US1749079A
(en )
1930-03-04
Typewriter word register
US1271860A
(en )
1918-07-09
Computing attachment for type-writers.
US1077684A
(en )
1913-11-04
Combined type-writing and computing machine.
US1282823A
(en )
1918-10-29
Combined type-writing and computing machine.