GB194291A
(https= )
US3016007A
(en )
1962-01-09
Tiotttnr tttf print-
US1987015A
(en )
1935-01-08
Overdraft control of ribbon mechanism
US2108896A
(en )
1938-02-22
Cash register
GB498753A
(en )
1939-01-09
Improvements in or relating to cash registers and similar accounting machines
US2655311A
(en )
1953-10-13
Automatic clear sign printing
GB407054A
(https= )
US2707076A
(en )
1955-04-26
H sharpe
GB442771A
(en )
1936-02-12
Improvements in or relating to cash registers and similar accounting machines
US1294704A
(en )
1919-02-18
Elimination and special-signal mechanism.
US1945027A
(en )
1934-01-30
Listing calculator
US1282823A
(en )
1918-10-29
Combined type-writing and computing machine.
GB612392A
(en )
1948-11-11
Improvements in or relating to accounting machines and similar calculating machines
GB344084A
(https= )
GB523064A
(https= )
USRE23031E
(en )
1948-08-24
Calculating machine
GB286314A
(https= )
GB474051A
(en )
1937-10-25
Improvements in or relating to cash registers and similar accounting machines
GB438369A
(https= )
GB340256A
(https= )
GB537502A
(https= )
GB387032A
(https= )
GB465890A
(https= )
GB213600A
(https= )
1900-01-01
GB273691A
(https= )