GB1049634A
(en )
1966-11-30
Multi-uniform and variable pitch escapement mechanism for typewriters
GB431627A
(enExample )
US3592309A
(en )
1971-07-13
Cyclically operable typewriter
GB431623A
(enExample )
GB1134771A
(en )
1968-11-27
Typewriter line space mechanism
US2055623A
(en )
1936-09-29
Calculating machine
US3578132A
(en )
1971-05-11
Half-space carriage return mechanism for typewriters
GB736097A
(enExample )
US3610389A
(en )
1971-10-05
Keyboard machine with sequentially responsive printing means
GB765291A
(enExample )
GB447485A
(enExample )
US3040977A
(en )
1962-06-26
Function control mechanism for manual adding machines
US1066083A
(en )
1913-07-01
Type-writing machine.
GB823136A
(en )
1959-11-04
Proportional letter feed mechanism
GB752785A
(en )
1956-07-11
Accounting machines and similar calculating machines
GB631379A
(enExample )
GB191506359A
(en )
1916-04-27
Improvements in Locking Mechanism for Key Controlled Machines such as Cash Registers and the like.
GB464746A
(enExample )
GB191413745A
(en )
1915-06-07
Improvements in or relating to Word-counting Devices for Typewriting Machines.
GB514973A
(enExample )
GB191118735A
(en )
1912-05-09
Calculating Machines of the Thomas Type.
GB318256A
(enExample )
GB712487A
(enExample )
GB351698A
(enExample )
GB670781A
(en )
1952-04-23
Improvements in or relating to typewriting machines