000 00531 a2200253 4500
001 112994
020 _a6
041 _aeng
080 _a621.867 Ann
245 _aElevators : electric and electrohydraulic elevators, escalators, moving sidewalks, and ramps
250 _a3rd ed
260 _aNew York
260 _bMcGraw-Hill,
260 _c1960
300 _axi,388 p.
300 _c23 cm
490 _a
100 _aAnnett, F.A.
700 _a
650 _a
650 _aElevators
942 _cBK
942 _2UDC
999 _c134721
_d134721