000 004220000a22001450004500
008 160427b1960 xxu||||| |||| 00| 0 eng d
041 _aeng
080 _a621.877
_bA6
942 _cBK
_01
100 _aAnnett, F.A.
245 _aElevators : electric and electrohydraulic elevators, escalators, moving sidewalks, and ramps
250 _a3rd ed.
260 _aNew York
_bMcGraw-Hill
_c1960
300 _axi, 388p. : ill.
999 _c8068
_d8068