GB274344A
(enrdf_load_stackoverflow )
US1794464A
(en )
1931-03-03
Combined typewriting anb computing machine
US1655570A
(en )
1928-01-10
A cobpobation op
US2433679A
(en )
1947-12-30
Indian currency computing and recording calculator
GB205870A
(en )
1923-10-24
Improvements in or relating to calculating machines
US1883892A
(en )
1932-10-25
Walther flach
GB457273A
(enrdf_load_stackoverflow )
GB217910A
(enrdf_load_stackoverflow )
US903172A
(en )
1908-11-10
Cash-register.
US1043804A
(en )
1912-11-12
Cash-register.
GB259267A
(enrdf_load_stackoverflow )
US1487999A
(en )
1924-03-25
Calculating machine
GB743554A
(enrdf_load_stackoverflow )
US858634A
(en )
1907-07-02
Controlling mechanism for adding-machines.
US2291949A
(en )
1942-08-04
Listing adding machine
GB925622A
(enrdf_load_stackoverflow )
GB668507A
(enrdf_load_stackoverflow )
GB749504A
(enrdf_load_stackoverflow )
GB747470A
(en )
1956-04-04
Cash registers
GB748756A
(enrdf_load_stackoverflow )
1900-01-01
GB420807A
(enrdf_load_stackoverflow )
1900-01-01
GB245186A
(enrdf_load_stackoverflow )
1900-01-01
GB191403084A
(en )
1915-02-04
Improvements in Adding Machines.
GB210713A
(enrdf_load_stackoverflow )
GB684539A
(enrdf_load_stackoverflow )