000 00270 a2200109 4500
003 OSt
040 _cIIT Kanpur
041 _aeng
245 1 _aOperating Instituctions TYPE 121O-C UNIT R-C OSCILLATOR
260 _aMassachusetts
_bGeneral Radio Company
_c1964
942 _cBK
999 _c453039
_d453039