GB212207A
(enrdf_load_stackoverflow )
US2710139A
(en )
1955-06-07
Swanson
US761210A
(en )
1904-05-31
Printing-machine.
US1901135A
(en )
1933-03-14
Carriage-return mechanism
US2577395A
(en )
1951-12-04
Autographic eegister
GB1154111A
(en )
1969-06-04
Encoder.
US1023235A
(en )
1912-04-16
Calculating-machine.
GB191204376A
(en )
1912-06-19
Improvements in and relating to Calculating Machines.
US3038577A
(en )
1962-06-12
Keyboard control and actuating apparatus
US1975774A
(en )
1934-10-09
Posit
US3722651A
(en )
1973-03-27
Keyboard
US1844811A
(en )
1932-02-09
Card perforating machine or the like
GB807114A
(en )
1959-01-07
Improvements in and relating to proportional spacing mechanism for typewriters
GB190712476A
(en )
1908-06-29
Improvements in Machines for Making Mechanical Controllers for Composing Machines.
US1065050A
(en )
1913-06-17
Type-writer carriage-actuating mechanism.
US1476205A
(en )
1923-12-04
A cobpobation op
US1471204A
(en )
1923-10-16
Stencil-cutting machine
US2055623A
(en )
1936-09-29
Calculating machine
US963785A
(en )
1910-07-12
Cash-register.
US960634A
(en )
1910-06-07
Perpendicular and horizontal adding machine.
GB243647A
(enrdf_load_stackoverflow )
GB191302318A
(en )
1914-01-01
Improvements in or relating to Adding Machines.
GB189808542A
(en )
1898-11-26
Improvements in Arithmometers and in Printing Mechanism therefor.
GB190930426A
(en )
1911-01-30
Improvements in the Column Printing and Denomination Selecting Arrangements of Computing Attachments for Typewriters.
GB193166A
(en )
1923-02-22
A machine for simultaneously printing words and figures