US2226960A
(en )
1940-12-31
Accounting machine
GB442538A
(enrdf_load_stackoverflow )
US2701685A
(en )
1955-02-08
Calculating mechanism
US2285311A
(en )
1942-06-02
Accounting machine
US1930871A
(en )
1933-10-17
Calculating machine
US1016308A
(en )
1912-02-06
Adding and listing machine.
GB483086A
(enrdf_load_stackoverflow )
GB215746A
(en )
1925-08-04
Improvements in cash registers and like machines
GB416498A
(enrdf_load_stackoverflow )
US1874164A
(en )
1932-08-30
Total
GB612392A
(en )
1948-11-11
Improvements in or relating to accounting machines and similar calculating machines
US1946602A
(en )
1934-02-13
Cash register
GB480322A
(enrdf_load_stackoverflow )
GB394999A
(enrdf_load_stackoverflow )
GB417991A
(enrdf_load_stackoverflow )
1900-01-01
US1927878A
(en )
1933-09-26
Calculating machine
GB483093A
(enrdf_load_stackoverflow )
GB628636A
(enrdf_load_stackoverflow )
GB443786A
(enrdf_load_stackoverflow )
GB540312A
(enrdf_load_stackoverflow )
GB598524A
(enrdf_load_stackoverflow )
GB737050A
(en )
1955-09-21
Computing machine
GB491465A
(enrdf_load_stackoverflow )
GB660615A
(enrdf_load_stackoverflow )
GB191116077A
(en )
1912-07-11
Improvements in or relating to Adding and Listing Machines.