000 00553nam a22001337a 4500
008 230616b |||||||| |||| 00| 0 eng d
040 _aNational Science Library
_cNational Science Library
080 _aT 622.285:621.316.57
_bN2
245 _aDevelopment of sensors and microprocessor based switching system for instrinsically safe power supply for underground use
_c/ Council of Scientific & Industrial Research
260 _aNew Delhi:
_bCouncil of Scientific & Industrial Research,
_c1990
300 _a39p.
650 _aScience
942 _2udc
_cREP
999 _c56413
_d56413