Automatic protective gear for A. C. Supply systems /

Bibliographic Details
Main Author:	Henderson, John
Format:	Book
Language:	English
Published:	London : Sir I. Pitman & sons, ltd., 1934.
Subjects:	Electric currents, Alternating. Electric machinery > Alternating current. Electric relays.

Description
Physical Description:	xiv, 201 pages : illustrations, diagrams ; 19 cm.