Telephone system

305,956. Automatic Telephone Manufacturing Co., Ltd., and Pearce, O. A. Oct. 10, 1927. Semi-automatic exchange systems.- A routine tester is described for testing the functions of repeaters, as shown in Fig. 11, similar to that described in Specification 268,058, which are used in conjunction with c...

Full description

Saved in:
Bibliographic Details
Main Author PEARCE OWEN AVIS
Format Patent
LanguageEnglish
Published 24.06.1930
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TELEPHONIC COMMUNICATION
Online AccessGet full text

Cover

Be the first to leave a comment!
You must be logged in first