GB1165587A
(en )
1969-10-01
Printing Machines incorporating Settable Print Wheels.
US2337091A
(en )
1943-12-21
Calculating machine
GB497640A
(enExample )
GB439838A
(enExample )
GB405661A
(enExample )
GB612392A
(en )
1948-11-11
Improvements in or relating to accounting machines and similar calculating machines
GB881323A
(enExample )
GB406671A
(enExample )
US3144822A
(en )
1964-08-18
Symbol printing control for accounting machines
US3652010A
(en )
1972-03-28
Totalizer control mechanism
GB512424A
(en )
1939-09-15
Improvements in or relating to cash registers and similar accounting machines
GB442771A
(en )
1936-02-12
Improvements in or relating to cash registers and similar accounting machines
GB483093A
(enExample )
GB191403084A
(en )
1915-02-04
Improvements in Adding Machines.
GB244658A
(enExample )
GB799307A
(enExample )
GB455290A
(enExample )
GB749504A
(enExample )
GB791715A
(enExample )
GB783849A
(enExample )
GB190828253A
(en )
1909-12-28
Improvements in and relating to Mechanical Calculators.
GB608694A
(enExample )
GB275968A
(enExample )
GB709961A
(enExample )
GB465798A
(enExample )