GB349618A
(https= )
US2555734A
(en )
1951-06-05
Automatic justifying typewriter
US3782276A
(en )
1974-01-01
Carriage locking arrangement for a manual printer
US2841265A
(en )
1958-07-01
Dual strip feeding mechanism for calculating machines
US3724366A
(en )
1973-04-03
High-speed parallel printer
US2924171A
(en )
1960-02-09
Rfpf at mfrraivrsm for cat
US1817883A
(en )
1931-08-04
Cash register
US1836477A
(en )
1931-12-15
Cash register
US2027449A
(en )
1936-01-14
Calculating machine and cash
US2827230A
(en )
1958-03-18
Ten key early entry and index retention mechanism
US1630814A
(en )
1927-05-31
Cash register
US3015434A
(en )
1962-01-02
Repeat cycling control mechanism for cash registers and accounting machines
US1819038A
(en )
1931-08-18
A oobfobation
GB373281A
(https= )
US1952983A
(en )
1934-03-27
Typewriting machine
US2000101A
(en )
1935-05-07
Cash register
US465255A
(en )
1891-12-15
Recording computing-machine
GB1007425A
(en )
1965-10-13
Calculating machine
US2905306A
(en )
1959-09-22
Carriage movement controlling mechanism
GB668035A
(https= )
US509657A
(en )
1893-11-28
Cash register
GB1153808A
(en )
1969-05-29
Improvements in or relating to Printers
GB190722221A
(en )
1908-10-08
Improvements in Accounting Machines applicable more particularly to Cash and Credit Registers
GB237602A
(https= )
GB258522A
(https= )