Relays in automatic telephony ; their construction, design, and adjustment, together with the theory of impulsing and the measurement of time lags /

Bibliographic Details

Main Author:	Palmer, Reginald William
Format:	Book
Language:	English
Published:	London, New York, [etc.] : Sir I. Pitman & sons, ltd., 1930.
Subjects:	Telephone, Automatic. Electric relays.