TY  - BOOK
AU  - Annett, F. A.
TI  - Elevators Electric and Electrohydraulic Elevators Escalators Moving Side Walk and Ramps 
U1  - 621.877 
PY  - 1960///
CY  - New York : 
PB  - McGraw-Hill, 
KW  - Elevators
N1  - NN
ER  -