GB550978A
(en )
1943-02-03
Improvements in or relating to calculating or similar accounting machines
US1016276A
(en )
1912-02-06
Adding and listing machine.
GB608988A
(enrdf_load_stackoverflow )
US2745601A
(en )
1956-05-15
Key-responsive calculating machine
US3323717A
(en )
1967-06-06
Control device for a ten key adding printing machine
US1626889A
(en )
1927-05-03
Adding and listing machine
GB427722A
(enrdf_load_stackoverflow )
GB191403084A
(en )
1915-02-04
Improvements in Adding Machines.
GB550766A
(en )
1943-01-22
Improvements in or relating to typewriting machines
GB156279A
(enrdf_load_stackoverflow )
US1794464A
(en )
1931-03-03
Combined typewriting anb computing machine
US2711855A
(en )
1955-06-28
Automatic non-tabulating mechanism for accounting machines
US3078790A
(en )
1963-02-26
Check writer
GB215746A
(en )
1925-08-04
Improvements in cash registers and like machines
GB268839A
(enrdf_load_stackoverflow )
US1026443A
(en )
1912-05-14
Calculating-machine.
US2170183A
(en )
1939-08-22
Cash register and accounting
GB190828253A
(en )
1909-12-28
Improvements in and relating to Mechanical Calculators.
GB416498A
(enrdf_load_stackoverflow )
GB819472A
(en )
1959-09-02
Improvements in or relating to cash registers and like adding machines
GB189827574A
(en )
1899-05-27
Improvements in or relating to Cash Registers or Check Tills.
GB228184A
(enrdf_load_stackoverflow )
GB344040A
(enrdf_load_stackoverflow )
GB190929891A
(en )
1910-03-29
Improvements in and relating to Mechanical Calculators.
GB417991A
(enrdf_load_stackoverflow )
1900-01-01