GB344040A
(enExample )
GB410381A
(en )
1934-05-17
Improvements relating to power actuated tabulator mechanism for typewriting and like machines
GB819472A
(en )
1959-09-02
Improvements in or relating to cash registers and like adding machines
US2317086A
(en )
1943-04-20
Calculating machine
GB608988A
(enExample )
GB813083A
(en )
1959-05-06
Calculating machines or similar accounting machines
GB268839A
(enExample )
GB191403084A
(en )
1915-02-04
Improvements in Adding Machines.
GB404927A
(enExample )
US1550945A
(en )
1925-08-25
Operating control for calculating machines
GB340256A
(enExample )
GB682295A
(enExample )
GB215746A
(en )
1925-08-04
Improvements in cash registers and like machines
GB355350A
(enExample )
GB415435A
(enExample )
GB292619A
(enExample )
GB442771A
(en )
1936-02-12
Improvements in or relating to cash registers and similar accounting machines
GB427722A
(enExample )
GB416498A
(enExample )
GB459812A
(enExample )
GB448791A
(en )
1936-06-15
Improvements in or relating to accounting machines, calculating machines and the like
GB190827249A
(en )
1909-06-03
Improvements in Typewriting Machines.
GB408795A
(en )
1934-04-19
Improvements in or relating to calculating and/or check writing machines
GB173042A
(enExample )
GB191116724A
(en )
1912-07-18
Improvements in or relating to Cash Register Machines.