000 00281nam a22001217a 4500
008 170526b xxu||||| |||| 00| 0 eng d
041 _aeng
080 _a621.3
100 _a27
101 _aIM
245 _aDC MOTORS SPEED CONTROLS SERVO SYSTEMS
_cALDRICH, C.S
942 _2udc
_cBK
999 _c14374
_d14374