GB478580A
(https= )
US807022A
(en )
1905-12-12
Word-registering attachment for type-writing machines.
US392837A
(en )
1888-11-13
Adding and subtracting machine
US1946602A
(en )
1934-02-13
Cash register
GB442856A
(https= )
US1275681A
(en )
1918-08-13
Combined type-writing and computing machine.
GB371462A
(en )
1932-04-21
Improvements in or relating to totalizer control mechanism for cash registers of the key set and key operated type
US2020340A
(en )
1935-11-12
Thieme
GB243083A
(en )
1925-11-25
Improvements in keyboard and differential mechanism for cash registers, and other calculating machines
GB612392A
(en )
1948-11-11
Improvements in or relating to accounting machines and similar calculating machines
GB223301A
(https= )
GB248002A
(https= )
GB191508119A
(en )
1916-06-01
Improvements in and relating to Total Taking and Printing Mechanism of Adding and Subtracting Machines.
US856318A
(en )
1907-06-11
Automatic key-connecting means for a combined type-writer and adder.
GB143603A
(https= )
GB190720725A
(en )
1908-09-18
Improvements in the Transfer Mechanism of Cash Registers Adding Machines and the like.
GB643189A
(https= )
GB200585A
(https= )
GB221812A
(https= )
GB218689A
(https= )
GB389841A
(https= )
GB495851A
(en )
1938-11-21
Cash register
GB215746A
(en )
1925-08-04
Improvements in cash registers and like machines
GB191403084A
(en )
1915-02-04
Improvements in Adding Machines.
GB465890A
(https= )