GB309392A
(https= )
GB508954A
(en )
1939-07-05
Improvements in machines for operating upon statistical cards
US2084097A
(en )
1937-06-15
Time-peinting construction
US2335949A
(en )
1943-12-07
Punching machine
US2431714A
(en )
1947-12-02
Selective printing and punching machine
GB617959A
(en )
1949-02-15
Improvements in or relating to punching apparatus
US2936113A
(en )
1960-05-10
Price tag collector controls
GB737751A
(en )
1955-09-28
Improvements in or relating to a typewriter controlled punching apparatus
GB254001A
(https= )
US2996979A
(en )
1961-08-22
Data-marking machine
US3019074A
(en )
1962-01-30
Time recording device and card therefor
US2110862A
(en )
1938-03-15
Perforating machine
GB434499A
(en )
1935-09-03
Improvements in or relating to machines for producing records on statistical cards
US3017078A
(en )
1962-01-16
Selective drawer control mechanism for cash registers and accounting machines
GB293905A
(https= )
GB1283703A
(en )
1972-08-02
Coin receiving and ticket issuing machine
US2913049A
(en )
1959-11-17
Card punching device
US1989323A
(en )
1935-01-29
Cash register
GB430251A
(en )
1935-06-17
Improvements in or relating to machines for verifying perforated record cards
GB404066A
(https= )
GB655039A
(en )
1951-07-11
Improvements in or relating to machines for registering and recording data relating to sales transactions
GB225274A
(en )
1924-11-25
Improvements in or relating to ticket punches.
GB556214A
(https= )
US1668186A
(en )
1928-05-01
Lswgf
GB262617A
(https= )