GB607744A
(enrdf_load_stackoverflow )
US2985364A
(en )
1961-05-23
Calculating machines adapted for tape recording
US2087182A
(en )
1937-07-13
Listing adding machine
US2756926A
(en )
1956-07-31
Dodsworth
US2261341A
(en )
1941-11-04
Adding and listing machine
US2809782A
(en )
1957-10-15
fleming
US3084855A
(en )
1963-04-09
Ten-key adding machine fo r non-uniform
US2577395A
(en )
1951-12-04
Autographic eegister
US2570931A
(en )
1951-10-09
Printing tabulating mechanism
US3072329A
(en )
1963-01-08
Control for motor operated business machines
GB406152A
(enrdf_load_stackoverflow )
1900-01-01
US842232A
(en )
1907-01-29
Adding-machine.
GB416498A
(enrdf_load_stackoverflow )
GB499027A
(enrdf_load_stackoverflow )
GB420807A
(enrdf_load_stackoverflow )
1900-01-01
GB508141A
(enrdf_load_stackoverflow )
GB875275A
(enrdf_load_stackoverflow )
1900-01-01
GB749504A
(enrdf_load_stackoverflow )
GB629975A
(enrdf_load_stackoverflow )
GB768516A
(enrdf_load_stackoverflow )
GB483113A
(enrdf_load_stackoverflow )
GB473624A
(enrdf_load_stackoverflow )
GB424420A
(enrdf_load_stackoverflow )
1900-01-01
GB344393A
(enrdf_load_stackoverflow )
GB368311A
(enrdf_load_stackoverflow )