GB540315A
(enrdf_load_stackoverflow )
US2805822A
(en )
1957-09-10
Totalizer controlling mechanism for accounting machines
GB768516A
(enrdf_load_stackoverflow )
GB545785A
(enrdf_load_stackoverflow )
US2365874A
(en )
1944-12-26
Computing machine
US1811353A
(en )
1931-06-23
Fornia
GB549960A
(enrdf_load_stackoverflow )
GB200062A
(enrdf_load_stackoverflow )
GB643189A
(enrdf_load_stackoverflow )
GB852822A
(enrdf_load_stackoverflow )
GB522721A
(en )
1940-06-25
Improvements relating to calculating machines
GB499027A
(enrdf_load_stackoverflow )
GB292619A
(enrdf_load_stackoverflow )
GB205436A
(enrdf_load_stackoverflow )
GB548465A
(enrdf_load_stackoverflow )
GB509441A
(enrdf_load_stackoverflow )
GB273691A
(enrdf_load_stackoverflow )
GB607744A
(enrdf_load_stackoverflow )
GB617346A
(enrdf_load_stackoverflow )
GB228184A
(enrdf_load_stackoverflow )
GB471364A
(enrdf_load_stackoverflow )
GB362857A
(enrdf_load_stackoverflow )
GB215746A
(en )
1925-08-04
Improvements in cash registers and like machines
GB317057A
(en )
1930-10-30
Improvements in or relating to calculating or the like machines
GB452787A
(enrdf_load_stackoverflow )