GB964716A
(enExample )
GB660632A
(en )
1951-11-07
Cash registers and similar accounting machines
US3881412A
(en )
1975-05-06
Printer for data processing machines
US1854748A
(en )
1932-04-19
Paper carriage escapement disabling mechanism
GB431961A
(enExample )
AU706589B2
(en )
1999-06-17
Improvements in locks
US3383036A
(en )
1968-05-14
Arrangement for positioning the decimal point in calculating machines
US4027763A
(en )
1977-06-07
Keyboard for office machines
US2714986A
(en )
1955-08-09
Single cycle mechanism
US2055623A
(en )
1936-09-29
Calculating machine
GB794112A
(enExample )
GB189801980A
(en )
1898-04-09
Improvements in or relating to Key Board Mechanism for Typewriters and Analogous Machines.
GB414377A
(enExample )
GB600446A
(enExample )
GB190327803A
(en )
1904-09-22
Improvements in Cash Registers.
GB416498A
(enExample )
GB453348A
(enExample )
GB459688A
(enExample )
GB630191A
(en )
1949-10-07
Improvements in a duplicating machine
GB447485A
(enExample )
GB473624A
(enExample )
GB408975A
(enExample )
GB750400A
(enExample )
GB191511254A
(en )
1916-08-04
Improvements in Combined Typewriting and Computing Machines.
GB334727A
(enExample )