|
US2782256A
(en)
|
|
Timing circuits
|
|
JPS57121380A
(en)
|
|
Editing device
|
|
US3303775A
(en)
|
|
Variable speed printer apparatus and type carrier device therefor
|
|
SE176304C1
(enExample)
|
|
|
|
US3072047A
(en)
|
|
Printing apparatus
|
|
US2204957A
(en)
|
|
Automatic call recording system
|
|
US3702380A
(en)
|
|
Queue for electronic telephone exchange
|
|
SE176653C1
(enExample)
|
|
|
|
SE175106C1
(enExample)
|
|
|
|
US3106613A
(en)
|
|
Telephone call fee registering arrangements
|
|
US3435421A
(en)
|
|
Apparatus for composing messages for telephonic transmission
|
|
US3436477A
(en)
|
|
Automatic dialer
|
|
US3715515A
(en)
|
|
Shift-register re-entry scanner with confirmation scan for detected disparity
|
|
US3099004A
(en)
|
|
Arrangement for series-transmission of coded signals
|
|
US3808373A
(en)
|
|
Pulse detector
|
|
US2909608A
(en)
|
|
Telephone traffic data processor
|
|
US3795791A
(en)
|
|
Automatic code-correcting device
|
|
US2981799A
(en)
|
|
Data recording system
|
|
US1041536A
(en)
|
|
Telephone-call recorder.
|
|
US3169169A
(en)
|
|
Traffic observation system
|
|
US2238126A
(en)
|
|
Trouble recorder
|
|
US2972015A
(en)
|
|
Coding apparatus
|
|
US3593658A
(en)
|
|
High-speed printing system with continuously rotating font wheel
|
|
US2883466A
(en)
|
|
Digit-absorbing selector
|
|
US3035252A
(en)
|
|
Data handling equipment
|