GB508954A
(en )
1939-07-05
Improvements in machines for operating upon statistical cards
GB737751A
(en )
1955-09-28
Improvements in or relating to a typewriter controlled punching apparatus
US2103720A
(en )
1937-12-28
helsel
US1940156A
(en )
1933-12-19
Perforating machine
GB490671A
(enExample )
GB549530A
(enExample )
US1873511A
(en )
1932-08-23
Perforating machine
US1630814A
(en )
1927-05-31
Cash register
GB251842A
(enExample )
US2702622A
(en )
1955-02-22
Paper feeding means in accounting machines
US3338367A
(en )
1967-08-29
Coin controlled machine for operating on tape
GB361116A
(en )
1931-11-19
Improvements relating to telegraph perforators
US2784666A
(en )
1957-03-12
Voucher-issuing business machine
GB791245A
(en )
1958-02-26
Improvements in or relating to keyboard perforators for perforating teleprinter tapes
GB783869A
(enExample )
GB719372A
(en )
1954-12-01
Improvements in or relating to keyboard controlled mechanisms for use in the production of lines or patterns of typographical and like matter
GB431961A
(enExample )
GB334727A
(enExample )
GB447485A
(enExample )
GB238553A
(en )
1926-11-15
Improvements in or relating to apparatus for perforating sheet material
GB1050647A
(enExample )
GB191104050A
(en )
1912-02-19
Improvements in and relating to Apparatus for Perforating the Signal Controlling Tape to be used with Automatic Telegraph Transmitters.
GB388760A
(en )
1933-02-28
Improvements in or relating to apparatus for reproducing the records on statistical cards
GB403644A
(enExample )
GB338990A
(enExample )