GB443840A
(en )
1936-03-06
Improvements in or relating to statistical recording machines
GB588491A
(en )
1947-05-22
Improvements in or relating to record-card controlled accounting machines
GB542362A
(enrdf_load_stackoverflow )
GB498400A
(en )
1939-01-06
Improvements in or relating to record-card-controlled printing mechanism
GB229937A
(enrdf_load_stackoverflow )
GB337478A
(enrdf_load_stackoverflow )
GB909935A
(en )
1962-11-07
Calculating or similar accounting machine
GB223067A
(enrdf_load_stackoverflow )
US2960164A
(en )
1960-11-15
Apparatus for checking recorded information
GB551994A
(enrdf_load_stackoverflow )
GB739005A
(enrdf_load_stackoverflow )
GB820710A
(en )
1959-09-23
Improvements in card punches
GB144543A
(enrdf_load_stackoverflow )
GB202098A
(enrdf_load_stackoverflow )
GB671841A
(enrdf_load_stackoverflow )
GB814939A
(en )
1959-06-17
Data record perforating device
US2307177A
(en )
1943-01-05
Punching machine
GB259470A
(enrdf_load_stackoverflow )
GB183867A
(en )
1922-07-26
Improvements relating to apparatus for compiling and printing statistics from perforated record cards
US2797867A
(en )
1957-07-02
Code translating mechanism
GB554105A
(en )
1943-06-21
Improvements in or relating to record card controlled printing machines
GB185726A
(enrdf_load_stackoverflow )
GB693657A
(en )
1953-07-01
Calculating machines
GB904426A
(en )
1962-08-29
Cash registers and similar accounting machines
GB770319A
(enrdf_load_stackoverflow )