Electric elevators : their design, construction, operation and maintenance /
Annett, Fred Anzley.
Electric elevators : their design, construction, operation and maintenance / by F. A. Annett. - Second edition, sixth impression. - New York ; London : McGraw-Hill Book Company, Inc., 1935. - XIV, 495 stron : ilustracje ; 23 cm.
Indeks.
Dźwigi i wyciągi.
Napęd elektryczny.
Electric elevators : their design, construction, operation and maintenance / by F. A. Annett. - Second edition, sixth impression. - New York ; London : McGraw-Hill Book Company, Inc., 1935. - XIV, 495 stron : ilustracje ; 23 cm.
Indeks.
Dźwigi i wyciągi.
Napęd elektryczny.