Electric elevators
By: by F. Hymans.
Series: [International Textbook Company.  Bluebooks] 568, 569
Publisher: International Textbook Company
Published: 1931
Place of publication: Scranton, Pa
Language: eng
Subjects: Elevators.; Electric motors.
Table of contents: title: book I.  Electric traction elevators.  Elevator hatchway equipment.; title: book II.  Electric elevator motors.  Electric elevator operation.