GB260179A
(enrdf_load_stackoverflow )
US2328638A
(en )
1943-09-07
Printing mechanism
US2237269A
(en )
1941-04-01
Check endorsing machine
GB1151808A
(en )
1969-05-14
Pulse-Operated Line Printer for Electronic Data-Processing Installations.
US2178749A
(en )
1939-11-07
Printing mechanism
GB818884A
(en )
1959-08-26
Improvements in and relating to printing apparatus
US1816263A
(en )
1931-07-28
robertson
US3072325A
(en )
1963-01-08
Kohler etai
US1985331A
(en )
1934-12-25
Paper feed mechanism for tabulating or other printing machines
US1940156A
(en )
1933-12-19
Perforating machine
GB237602A
(enrdf_load_stackoverflow )
US1248323A
(en )
1917-11-27
Actuating mechanism for combined type-writing and computing machines.
US1178796A
(en )
1916-04-11
Paper-feed mechanism.
US2118861A
(en )
1938-05-31
Combined typewriting and computing
US1516679A
(en )
1924-11-25
muller
GB629421A
(enrdf_load_stackoverflow )
US679073A
(en )
1901-07-23
Cash-register.
US2203327A
(en )
1940-06-04
Tabulating machine
GB190720001A
(en )
1908-03-19
Improvements in Workmen's and like Time Recorders.
GB191021842A
(en )
1911-09-20
Improvements in and relating to Calculating Machines.
GB631379A
(enrdf_load_stackoverflow )
GB630191A
(en )
1949-10-07
Improvements in a duplicating machine
GB453645A
(enrdf_load_stackoverflow )
GB183867A
(en )
1922-07-26
Improvements relating to apparatus for compiling and printing statistics from perforated record cards
GB191415924A
(en )
1914-08-17
Improvements in Printing Mechanism for Calculating Machines.