GB268839A
(enrdf_load_stackoverflow )
US2349660A
(en )
1944-05-23
Cash register
US1987015A
(en )
1935-01-08
Overdraft control of ribbon mechanism
GB410381A
(en )
1934-05-17
Improvements relating to power actuated tabulator mechanism for typewriting and like machines
US1294704A
(en )
1919-02-18
Elimination and special-signal mechanism.
GB608988A
(enrdf_load_stackoverflow )
GB643189A
(enrdf_load_stackoverflow )
GB465890A
(enrdf_load_stackoverflow )
US2433679A
(en )
1947-12-30
Indian currency computing and recording calculator
US3323717A
(en )
1967-06-06
Control device for a ten key adding printing machine
GB408795A
(en )
1934-04-19
Improvements in or relating to calculating and/or check writing machines
US2166067A
(en )
1939-07-11
Transfer mechanism
GB459812A
(enrdf_load_stackoverflow )
GB682295A
(enrdf_load_stackoverflow )
GB462686A
(enrdf_load_stackoverflow )
GB221812A
(enrdf_load_stackoverflow )
GB420807A
(enrdf_load_stackoverflow )
1900-01-01
US836130A
(en )
1906-11-20
Adding-machine.
GB427722A
(enrdf_load_stackoverflow )
GB528737A
(enrdf_load_stackoverflow )
GB224244A
(en )
1925-03-27
Improvements in keyboard and differential mechanism for cash registers or calculating machines
GB223866A
(enrdf_load_stackoverflow )
GB147762A
(en )
1921-08-04
Improvements in or relating to calculating machines
GB687908A
(enrdf_load_stackoverflow )
GB348630A
(enrdf_load_stackoverflow )