US2503865A
(en )
1950-04-11
Differential setting mechanism fob
GB553057A
(enrdf_load_stackoverflow )
US2974860A
(en )
1961-03-14
Balance totalizer control means for
US2079355A
(en )
1937-05-04
Automatic overdraft device for
US1829817A
(en )
1931-11-03
Cash register
US2675175A
(en )
1954-04-13
Indian currency adding machine
US1978914A
(en )
1934-10-30
Cash register
US2433679A
(en )
1947-12-30
Indian currency computing and recording calculator
US3047219A
(en )
1962-07-31
Selective amount transfer control mechanism
GB479234A
(enrdf_load_stackoverflow )
1900-01-01
US3076595A
(en )
1963-02-05
Becker
US2457050A
(en )
1948-12-21
Printing mechanism fob adding
US2316520A
(en )
1943-04-13
Accounting machine
GB648389A
(enrdf_load_stackoverflow )
US3067930A
(en )
1962-12-11
Accounting machine recording control means
US1311884A
(en )
1919-08-05
Registering and recording mechanish
US2291949A
(en )
1942-08-04
Listing adding machine
GB668507A
(enrdf_load_stackoverflow )
GB1113936A
(enrdf_load_stackoverflow )
GB190828253A
(en )
1909-12-28
Improvements in and relating to Mechanical Calculators.
GB147762A
(en )
1921-08-04
Improvements in or relating to calculating machines
GB424420A
(enrdf_load_stackoverflow )
1900-01-01
GB143462A
(enrdf_load_stackoverflow )
GB191219273A
(en )
1913-03-13
Improvements in the Keyboards and Connecting Members of Calculating Machines.
GB783849A
(enrdf_load_stackoverflow )