US2361662A
(en )
1944-10-31
Accounting machine
GB268384A
(enExample )
Atwell
2022
International Bullion Flows and the Chinese Economy, circa 1530–1650
US2088434A
(en )
1937-07-27
Calculating machine
US2404170A
(en )
1946-07-16
Cash register
US2760722A
(en )
1956-08-28
Two-total credit balance adding
GB511438A
(enExample )
US2613872A
(en )
1952-10-14
Split mechanism
GB191346A
(en )
1923-01-04
Improvements in and relating to keyboard and differential mechanism for cash registers and like machines
US2962209A
(en )
1960-11-29
Totalizer and special counter equipment for cash registers
US2715498A
(en )
1955-08-16
Locking means for cash registers
US2107445A
(en )
1938-02-08
Controlling mechanism for cash
US2417563A
(en )
1947-03-18
Locking device for accounting
GB214991A
(enExample )
GB221812A
(enExample )
US2063740A
(en )
1936-12-08
Calculating machine
US2284884A
(en )
1942-06-02
Cash register
GB191116724A
(en )
1912-07-18
Improvements in or relating to Cash Register Machines.
GB203762A
(enExample )
GB535265A
(enExample )
GB481127A
(enExample )
GB537502A
(enExample )
US1660373A
(en )
1928-02-28
Cash register
US1311884A
(en )
1919-08-05
Registering and recording mechanish
GB269928A
(enExample )