GB669844A
(en )
1952-04-09
Improvements in or relating to telegraphic tape-recording apparatus
US2424359A
(en )
1947-07-22
Adding machine
GB452472A
(enrdf_load_stackoverflow )
GB529647A
(en )
1940-11-26
Improvements in or relating to apparatus for recording on statistical record cards
US3081938A
(en )
1963-03-19
Wai thfr c-tai
US2570931A
(en )
1951-10-09
Printing tabulating mechanism
GB1073595A
(enrdf_load_stackoverflow )
GB190412544A
(en )
1904-08-25
Improvements relating to Cash Registers.
GB937146A
(en )
1963-09-18
Data-marking machine
US3620446A
(en )
1971-11-16
Printing device for a calculating machine
GB601099A
(en )
1948-04-27
Improvements in or relating to statistical machines
GB469028A
(enrdf_load_stackoverflow )
GB604165A
(enrdf_load_stackoverflow )
GB699815A
(en )
1953-11-18
Improvements in statistical card controlled machines
US2055623A
(en )
1936-09-29
Calculating machine
US3601044A
(en )
1971-08-24
Printer mechanism
GB545438A
(enrdf_load_stackoverflow )
GB660615A
(enrdf_load_stackoverflow )
GB165846A
(en )
1921-07-11
Improvements in and relating to total taking machines for compiling statistics from perforated record cards
GB232966A
(enrdf_load_stackoverflow )
GB555659A
(en )
1943-09-01
Improvements in or relating to calculating or like machines
GB612392A
(en )
1948-11-11
Improvements in or relating to accounting machines and similar calculating machines
GB420807A
(enrdf_load_stackoverflow )
1900-01-01
GB558793A
(en )
1944-01-21
Improvements in or relating to printing machines
GB199422A
(en )
1923-06-20
Improvements in machines for verifying or punching the holes in statistical record cards