GB757113A
(enExample )
US1832791A
(en )
1931-11-17
Calculating machine
GB368117A
(enExample )
GB650357A
(en )
1951-02-21
Differential setting mechanism for cash registers or similar accounting machines
US1892614A
(en )
1932-12-27
renders
GB516693A
(enExample )
GB438516A
(enExample )
GB577330A
(enExample )
1900-01-01
GB144361A
(en )
1920-06-07
Improvements in cash registers
GB263955A
(enExample )
GB191017958A
(en )
1911-03-02
A Calculating Machine, especially intended for Effecting Multiplication.
GB435286A
(enExample )
GB496720A
(enExample )
GB191414137A
(en )
1915-06-11
Improvements in Cash Registers or the like.
GB970251A
(enExample )
GB190715268A
(en )
1908-07-02
Improvements in Cash Registers
GB150735A
(enExample )
GB229642A
(enExample )
GB360842A
(enExample )
GB381769A
(enExample )
GB279423A
(enExample )
GB605926A
(enExample )
1900-01-01
GB240156A
(enExample )
GB672804A
(enExample )
GB477797A
(enExample )