GB656185A
(https= )
US1439097A
(en )
1922-12-19
Counting and indicating mechanism
US3807167A
(en )
1974-04-30
Timepiece with digital hour display
GB610472A
(en )
1948-10-15
Improvements relating to zeroizing mechanism for revolution counters
US1618140A
(en )
1927-02-15
Counting mechanism
US1022280A
(en )
1912-04-02
Calculating-machine.
US1323381A
(en )
1919-12-02
Vahia
US2645426A
(en )
1953-07-14
Predetermined counter value setting device
US2450787A
(en )
1948-10-05
fleming
US1794514A
(en )
1931-03-03
Driving mechanism for calculating machines
US2378560A
(en )
1945-06-19
Selecting mechanism for calculating
GB672288A
(en )
1952-05-21
An improved drum counter for apparatus indicating telephone charges
GB656601A
(https= )
US503946A
(en )
1893-08-29
Cash register and indicator
GB526187A
(en )
1940-09-12
Improvements in driving members for transferring stepwise rotation to driven members
GB882851A
(en )
1961-11-22
Degrees of arc counter
US3243111A
(en )
1966-03-29
Two input counter unit
US888752A
(en )
1908-05-26
Register.
US2503332A
(en )
1950-04-11
Differential gear tens transfer
US2965290A
(en )
1960-12-20
Shutter mechanism for counters
US2838236A
(en )
1958-06-10
De chancy
GB272569A
(https= )
US1761656A
(en )
1930-06-03
Cash register
GB621390A
(en )
1949-04-08
Differential setting mechanism for the indicating wheels of cash registers and the like accounting machines
GB751957A
(https= )