GB949444A
(fi )
US2682371A
(en )
1954-06-29
Pin carriage shifting mechanism for ten-key multiplying machines
US2429730A
(en )
1947-10-28
Sensing means for business machines
US2969176A
(en )
1961-01-24
Signal printing mechanism
US3527406A
(en )
1970-09-08
Card reader apparatus
GB803086A
(en )
1958-10-15
Improvements in or relating to typewriters and the like including tabulating mechanisms
US3037691A
(en )
1962-06-05
Ktjhn
US2078084A
(en )
1937-04-20
Card verifier
US2577083A
(en )
1951-12-04
Reading unit for small holes
US2573561A
(en )
1951-10-30
Storage unit
GB688438A
(en )
1953-03-04
Improvements in or relating to a verifying machine
US3017080A
(en )
1962-01-16
Read-out system
GB949445A
(en )
1964-02-12
Data sensing device for an accounting machine
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
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
US3020044A
(en )
1962-02-06
Card feeding apparatus
US2146291A
(en )
1939-02-07
Card perforator with spot detector
US2059799A
(en )
1936-11-03
Card verifier
US2792222A
(en )
1957-05-14
Registration device for record card punching machine
US3015437A
(en )
1962-01-02
Totalizing control means