GB210713A
(https= )
US1682196A
(en )
1928-08-28
Cash register
US2229771A
(en )
1941-01-28
Cash register
US1755499A
(en )
1930-04-22
Cash register
US1840535A
(en )
1932-01-12
shipley
US1915624A
(en )
1933-06-27
shipley
GB668507A
(https= )
US1785378A
(en )
1930-12-16
frank
US2204848A
(en )
1940-06-18
Cash register
GB215746A
(en )
1925-08-04
Improvements in cash registers and like machines
GB241213A
(https= )
US1487999A
(en )
1924-03-25
Calculating machine
GB205870A
(en )
1923-10-24
Improvements in or relating to calculating machines
GB255102A
(https= )
GB206798A
(https= )
GB481127A
(https= )
GB190828253A
(en )
1909-12-28
Improvements in and relating to Mechanical Calculators.
GB528567A
(https= )
GB193406A
(https= )
GB416498A
(https= )
GB293080A
(https= )
GB265208A
(en )
1927-06-30
Improvements in or relating to cash registers of the key-set and key-operated type
GB368785A
(https= )
GB471765A
(https= )
GB245186A
(https= )
1900-01-01