US2708873A
(en )
1955-05-24
Tag-marking and forming machine
GB362529A
(en )
1931-12-10
Improvements in or relating to punching machines for perforating statistical record cards
GB293905A
(https= )
US2768691A
(en )
1956-10-30
Reproducing punch
US1944671A
(en )
1934-01-23
Record perforating device
US2335949A
(en )
1943-12-07
Punching machine
GB737751A
(en )
1955-09-28
Improvements in or relating to a typewriter controlled punching apparatus
GB352950A
(en )
1931-07-14
Improvements in or relating to machines for punching statistical record cards
US2078470A
(en )
1937-04-27
Machines for making records on statistical cards
GB745482A
(en )
1956-02-29
Key-controlled perforating machines
US2126595A
(en )
1938-08-09
Record controlled tabulator type
US2439030A
(en )
1948-04-06
Key-punch slotting machine
US3095807A
(en )
1963-07-02
Indicia-applying machine
US2614489A
(en )
1952-10-21
Remote-control recording mechanism
US2706078A
(en )
1955-04-12
Toll checking system
US2165415A
(en )
1939-07-11
Sorter
US1811387A
(en )
1931-06-23
Record making mechanism
GB491142A
(en )
1938-08-26
Improvements in or relating to machines for verifying and punching record cards
GB309392A
(https= )
US3236444A
(en )
1966-02-22
Perforating device for the recording of message signals, data, measurement values or the like, especially in conjunction with a drum counting mechanism and/or printing mechanism
US1228315A
(en )
1917-05-29
Counting and recording mechanism.
GB1122116A
(en )
1968-07-31
Improvements in or relating to actuating mechanisms for printers or perforators
GB190712476A
(en )
1908-06-29
Improvements in Machines for Making Mechanical Controllers for Composing Machines.
US2160171A
(en )
1939-05-30
Card punch
US3036518A
(en )
1962-05-29
Record punching and printing machine