US4455552A
(en )
1984-06-19
Combination locks with electro-optical silent alarm system
GB706900A
(enExample )
US3334237A
(en )
1967-08-01
Photoelectric signal control with power keyboard actuated code discs
US1124820A
(en )
1915-01-12
Recording mechanism.
US3761918A
(en )
1973-09-25
Concurrent entry preventing system
US3251546A
(en )
1966-05-17
Register resetting means
US946755A
(en )
1910-01-18
Printing device for meters.
US2339852A
(en )
1944-01-25
Register setting device
GB1304359A
(enExample )
1973-01-24
US1796296A
(en )
1931-03-17
Postage meter
GB1350982A
(en )
1974-04-24
Keyboard apparatus for coded signal transmission
GB346093A
(enExample )
US3570758A
(en )
1971-03-16
Value-entering mechanism
GB190412457A
(en )
1904-12-15
Improvements in and relating to Cash Registers.
ES403694A1
(es )
1975-05-01
Maquina de escribir interlingual.
US3132801A
(en )
1964-05-12
tingley
US2170183A
(en )
1939-08-22
Cash register and accounting
GB269928A
(enExample )
US511257A
(en )
1893-12-19
Cash register and indicator
GB191109300A
(en )
1912-04-11
Improvements in Cash Registers and the like.
GB190715266A
(en )
1908-07-02
Improvements in Validating Devices for Sale Slips, Checks, or the like.
US1883892A
(en )
1932-10-25
Walther flach
JPS5783883A
(en )
1982-05-25
Electronic machinery
GB1378266A
(en )
1974-12-27
Error detection circuits
GB191213037A
(en )
1912-11-22
Improvements in and relating to Adding and Transaction-counting Mechanism for Cash Registers, or Computing or Registering Machines.