|
GB725902A
|
|
Apparatus for the repetition of parts of automatic telephonograph messages which were not understood
|
|
GB732199A
|
|
Device for controlling a telephonograph
|
|
US2782255A
|
|
Telephonograph
|
|
US2777899A
|
|
Telephonograph with device for repetition of announcements
|
|
US2773124A
|
|
Method and device for controlling a telephonograph
|
|
US2773123A
|
|
Method and device for distant control of a telephonograph by code signals over a telephone line
|
|
US2766323A
|
|
Method and apparatus for the arbitrary repetttion of parts of automatic telephonograph messages which were not understood
|
|
US2709202A
|
|
Method for the coded remote control of a telephonograph over a telephone system and installation for the performance of the method
|
|
US2766328A
|
|
Device for the erasure of recordings on magnetic sound carriers in the form of discsor endless tapes
|
|
US2665337A
|
|
Telephonograph with answering device
|
