GB523687A
(https= )
US2646929A
(en )
1953-07-28
Gourdon
US2154381A
(en )
1939-04-11
Cash register
US2096465A
(en )
1937-10-19
Calculating machine
GB612392A
(en )
1948-11-11
Improvements in or relating to accounting machines and similar calculating machines
GB453280A
(https= )
US2514754A
(en )
1950-07-11
Clutch control means
US1555534A
(en )
1925-09-29
Cash register
GB445877A
(en )
1936-04-20
Improvements in or relating to calculating or the like machines
GB660641A
(https= )
US1899455A
(en )
1933-02-28
Schaft
GB162734A
(https= )
GB310053A
(https= )
US2330512A
(en )
1943-09-28
Calculating machine
US1508267A
(en )
1924-09-09
Overdraft key-locking and indicating mechanism for calculating machines
GB550097A
(en )
1942-12-23
Improvements in and relating to cash registers and like calculating machines
GB372633A
(https= )
GB508918A
(https= )
US2645419A
(en )
1953-07-14
Item and total printing mechanism for calculating machines
GB456157A
(en )
1936-11-04
Improvements in and relating to computing and printing machines having bichrome ribbons
US1761549A
(en )
1930-06-03
von pein
US2940668A
(en )
1960-06-14
Sign signal mechanism
GB704337A
(https= )
GB508141A
(https= )
GB829800A
(https= )