GB681854A
(https= )
US2226960A
(en )
1940-12-31
Accounting machine
US1012702A
(en )
1911-12-26
Attachment for calculating-machines.
GB1082528A
(en )
1967-09-06
A device for preventing the capacity of calculating machines from being exceeded
GB191006399A
(en )
1911-03-14
Improvements in and relating to Cash Registers and the like.
GB191120596A
(en )
1912-09-05
Improvements in Printing Mechanism for Adding Machines.
US1994639A
(en )
1935-03-19
Column register for calculating
GB205870A
(en )
1923-10-24
Improvements in or relating to calculating machines
GB549960A
(https= )
GB190615031A
(en )
1906-09-20
Improvements in or relating to Typewriters.
US2667303A
(en )
1954-01-26
Cash register key coupler
GB191021412A
(en )
1911-01-19
Improvements in or relating to Transfer Mechanism for Calculating Machines.
GB459812A
(https= )
GB191201057A
(en )
1913-01-13
Improvements in Apparatus for Spinning Articles of Metal.
GB191414137A
(en )
1915-06-11
Improvements in Cash Registers or the like.
GB191019802A
(en )
1911-07-06
Improvements in Multi-colour Ribbon Adjustment Devices for Type-writing Machines.
GB783979A
(en )
1957-10-02
Improvements in or relating to printing mechanisms for typewriting machines and the like
GB190805522A
(en )
1909-03-11
Improvements in or relating to Typewriters.
GB189702778A
(en )
1897-04-24
Improvements in Type-writing Machines.
GB146273A
(en )
1921-10-24
Improvements in and relating to keyboard setting mechanism for adding-machines
GB539372A
(https= )
GB939893A
(https= )
GB1208287A
(en )
1970-10-14
A character-spacing mechanism
GB124693A
(https= )
GB191210902A
(en )
1913-06-09
Combined Typewriting and Computing Machine.