GB300661A
(https= )
US2361662A
(en )
1944-10-31
Accounting machine
US3703987A
(en )
1972-11-28
Keyboard locking device
US2650023A
(en )
1953-08-25
Plural drawer mechanism for cash registers
US2715498A
(en )
1955-08-16
Locking means for cash registers
GB498753A
(en )
1939-01-09
Improvements in or relating to cash registers and similar accounting machines
US2593666A
(en )
1952-04-22
Key lock means for cash reg
US2962209A
(en )
1960-11-29
Totalizer and special counter equipment for cash registers
US3076595A
(en )
1963-02-05
Becker
GB337607A
(https= )
GB221812A
(https= )
GB191346A
(en )
1923-01-04
Improvements in and relating to keyboard and differential mechanism for cash registers and like machines
US2063740A
(en )
1936-12-08
Calculating machine
GB535265A
(https= )
US2714487A
(en )
1955-08-02
Lockable key banks for business
US2690872A
(en )
1954-10-05
Accumulator shutter and reset lever interlock
GB511438A
(https= )
GB453348A
(https= )
US1215567A
(en )
1917-02-13
Locking mechanism for cash-registers.
GB443977A
(https= )
GB275968A
(https= )
GB214991A
(https= )
GB489693A
(https= )
GB1084690A
(https= )
GB537502A
(https= )