GB949444A
(enrdf_load_stackoverflow )
US2682371A
(en )
1954-06-29
Pin carriage shifting mechanism for ten-key multiplying machines
US2340801A
(en )
1944-02-01
Record controlled perforating apparatus
US2969176A
(en )
1961-01-24
Signal printing mechanism
US3527406A
(en )
1970-09-08
Card reader apparatus
GB868453A
(en )
1961-05-17
Improvements in or relating to typewriters and the like including tabulating mechanisms
US2654459A
(en )
1953-10-06
Machine for marking statistical records by conductive marks
US2523904A
(en )
1950-09-26
Record sensing and translating device
US2577083A
(en )
1951-12-04
Reading unit for small holes
US3017080A
(en )
1962-01-16
Read-out system
GB949445A
(en )
1964-02-12
Data sensing device for an accounting machine
US2562049A
(en )
1951-07-24
Calculating machine
US2698715A
(en )
1955-01-04
Machine release mechanism
US2973142A
(en )
1961-02-28
Record analyzing apparatus
US2055186A
(en )
1936-09-22
Machine for verifying perforated record cards
US3472448A
(en )
1969-10-14
Recording system for business machines
GB747441A
(en )
1956-04-04
Improvements in statistical record card sensing devices
US1991551A
(en )
1935-02-19
Cash register
GB789915A
(en )
1958-01-29
Improvements in or relating to record controlled statistical machines
US2362392A
(en )
1944-11-07
timing mechanism
US3900191A
(en )
1975-08-19
Card advancing and function performing methods and apparatus
GB905805A
(en )
1962-09-12
Accounting machines
US3020044A
(en )
1962-02-06
Card feeding apparatus
US1260706A
(en )
1918-03-26
Listing-machine for pay-rolls and the like.
US2960164A
(en )
1960-11-15
Apparatus for checking recorded information