GB550978A
(en )
1943-02-03
Improvements in or relating to calculating or similar accounting machines
GB140363A
(enrdf_load_stackoverflow )
US2088434A
(en )
1937-07-27
Calculating machine
US2087182A
(en )
1937-07-13
Listing adding machine
US2104051A
(en )
1938-01-04
Calculating machine
US2063740A
(en )
1936-12-08
Calculating machine
US1294704A
(en )
1919-02-18
Elimination and special-signal mechanism.
US1991551A
(en )
1935-02-19
Cash register
GB741039A
(en )
1955-11-23
Calculating machine
US2469675A
(en )
1949-05-10
Decimal rounding off mechanism
US2027449A
(en )
1936-01-14
Calculating machine and cash
US1740629A
(en )
1929-12-24
of dayton
GB442771A
(en )
1936-02-12
Improvements in or relating to cash registers and similar accounting machines
GB457273A
(enrdf_load_stackoverflow )
GB191009294A
(en )
1910-06-23
Improvements in and relating to Cash Registers.
GB459018A
(enrdf_load_stackoverflow )
GB191511561A
(en )
1916-02-17
Improvements in Defferential and Operating Mechanisms for Cash Registers and the like.
GB465849A
(en )
1937-05-18
A nought-entering mechanism for "ten key" adding machines
GB224244A
(en )
1925-03-27
Improvements in keyboard and differential mechanism for cash registers or calculating machines
GB559880A
(en )
1944-03-09
Improvements in recording and computing machines
GB191200798A
(en )
1913-02-10
Improvements in Cash Registers.
GB191120332A
(en )
1912-09-12
Improvements in and relating to Cash Registers.
GB469034A
(enrdf_load_stackoverflow )
GB783849A
(enrdf_load_stackoverflow )
GB445540A
(enrdf_load_stackoverflow )