GB550978A
(en )
1943-02-03
Improvements in or relating to calculating or similar accounting machines
GB337478A
(enrdf_load_stackoverflow )
GB410381A
(en )
1934-05-17
Improvements relating to power actuated tabulator mechanism for typewriting and like machines
US2651462A
(en )
1953-09-08
Item, total, and repeated registration control mechanism
US2261341A
(en )
1941-11-04
Adding and listing machine
GB509042A
(enrdf_load_stackoverflow )
GB295632A
(enrdf_load_stackoverflow )
GB243734A
(enrdf_load_stackoverflow )
GB394999A
(enrdf_load_stackoverflow )
US1774924A
(en )
1930-09-02
Ehnst kassner
GB497640A
(enrdf_load_stackoverflow )
GB741039A
(en )
1955-11-23
Calculating machine
GB334727A
(enrdf_load_stackoverflow )
GB660615A
(enrdf_load_stackoverflow )
GB275968A
(enrdf_load_stackoverflow )
GB693659A
(enrdf_load_stackoverflow )
GB904426A
(en )
1962-08-29
Cash registers and similar accounting machines
GB229937A
(enrdf_load_stackoverflow )
GB416498A
(enrdf_load_stackoverflow )
GB241213A
(enrdf_load_stackoverflow )
GB628636A
(enrdf_load_stackoverflow )
GB420807A
(enrdf_load_stackoverflow )
1900-01-01
GB693657A
(en )
1953-07-01
Calculating machines
GB237602A
(enrdf_load_stackoverflow )
GB484821A
(enrdf_load_stackoverflow )