GB355350A
(https= )
US2141333A
(en )
1938-12-27
Cash register
US1397774A
(en )
1921-11-22
muller
US2027449A
(en )
1936-01-14
Calculating machine and cash
US3570758A
(en )
1971-03-16
Value-entering mechanism
US2649733A
(en )
1953-08-25
Carrying frames in accounting
US1744183A
(en )
1930-01-21
Assig-itoh
GB406671A
(https= )
GB464133A
(https= )
GB286314A
(https= )
US1839182A
(en )
1931-12-29
Assionob
US1871846A
(en )
1932-08-16
Assig-ntoe
GB438369A
(https= )
GB425542A
(https= )
GB387032A
(https= )
GB248002A
(https= )
GB147762A
(en )
1921-08-04
Improvements in or relating to calculating machines
GB442856A
(https= )
GB739747A
(https= )
GB612392A
(en )
1948-11-11
Improvements in or relating to accounting machines and similar calculating machines
GB340256A
(https= )
GB389630A
(https= )
1900-01-01
GB530120A
(https= )
GB143462A
(https= )
GB448791A
(en )
1936-06-15
Improvements in or relating to accounting machines, calculating machines and the like