Electric elevators
Title:
Electric elevators
Author:
Hymans, Frederick, 1875-
Personal Author:
Publication Information:
Scranton, Pa. : International Textbook Company, [1931]
Physical Description:
2 volumes : illustrations, diagrams (part folded) ; 19.5 cm.
Language:
English
Contents:
book I. Electric traction elevators. Elevator hatchway equipment.--book II. Electric elevator motors. Electric elevator operation.--
Format :
Book