ES411985A1
(es )
1976-01-01
Sistema para correccion de errores en maquinas de escribir o aparatos de impresion.
CA1122146A
(en )
1982-04-20
Paper insertion apparatus for a typewriter
GB1094278A
(enrdf_load_stackoverflow )
ES349097A1
(es )
1969-04-01
Un aparato lector e impresor de tarjetas.
US2019897A
(en )
1935-11-05
Printing machine
US1277500A
(en )
1918-09-03
Type-writing machine.
GB793419A
(en )
1958-04-16
Mechanism for controlling the force of impact of the type faces in electric typewriting machines
US2848090A
(en )
1958-08-19
Typewriter control means
US2206624A
(en )
1940-07-02
Typewriters
GB766782A
(en )
1957-01-23
Improvements in machine for recording on magnetic tape
US3301371A
(en )
1967-01-31
Automatic zero printing means
US2518376A
(en )
1950-08-08
Electrically operated printing
US3072048A
(en )
1963-01-08
Stop mechanism control for record feeding apparatus
US2577395A
(en )
1951-12-04
Autographic eegister
US2509571A
(en )
1950-05-30
Underscoring device for typewriters
GB491142A
(en )
1938-08-26
Improvements in or relating to machines for verifying and punching record cards
GB190628122A
(en )
1907-04-18
Improvements in and relating to Typewriting Machines.
US3600555A
(en )
1971-08-17
Dual function motor key for calculators
US688939A
(en )
1901-12-17
Apparatus for automatically producing an umlimited number of copies.
GB754403A
(enrdf_load_stackoverflow )
US1980346A
(en )
1934-11-13
Bookkeeping machine
GB190425432A
(en )
1905-09-21
Improvements in Typewriting and other Key-actuated Machines.
GB1496409A
(en )
1977-12-30
Release and blocking mechanism for power operated typewriters
GB1025258A
(en )
1966-04-06
Improvements in or relating to typewriting machines and the like
GB191322601A
(en )
1914-04-09
Improvements in Typewriting Machines.