US3624357A
(en )
1971-11-30
Credit card sales transaction system
GB227852A
(https= )
US2043600A
(en )
1936-06-09
Printing machine
US2361662A
(en )
1944-10-31
Accounting machine
GB498753A
(en )
1939-01-09
Improvements in or relating to cash registers and similar accounting machines
US2391825A
(en )
1945-12-25
Calculating machine
US2173246A
(en )
1939-09-19
Calculating machine and recording
GB223939A
(https= )
US2141332A
(en )
1938-12-27
Cash register
US2404170A
(en )
1946-07-16
Cash register
US2313418A
(en )
1943-03-09
Special character and amount printing mechanism
GB189816329A
(en )
1899-06-02
Improvements in Cash Register Machines.
US3067930A
(en )
1962-12-11
Accounting machine recording control means
US3047219A
(en )
1962-07-31
Selective amount transfer control mechanism
US833825A
(en )
1906-10-23
Check and slip printing cash-register.
US2170183A
(en )
1939-08-22
Cash register and accounting
US1311884A
(en )
1919-08-05
Registering and recording mechanish
GB421966A
(https= )
US2056821A
(en )
1936-10-06
Controlling mechanism for cash
GB336595A
(https= )
US1858027A
(en )
1932-05-10
Combined typewriting
US1396348A
(en )
1921-11-08
Combined typewriting and computing machine
US1371653A
(en )
1921-03-15
Cash-register
US754049A
(en )
1904-03-08
Cash-register.
GB144373A
(https= )