000 | 003850000a22001090004500 | ||
---|---|---|---|
027 |
_aBS 3238 _pPart I _q1960 |
||
942 | _cSD | ||
110 | _aBritish Standards Institution | ||
245 | _aB.S. 3238 : Pt. I : 1960 : Graphical symbols for components of servo-mechanisms : Pt. I - Transductors and magnetic amplifiers | ||
260 |
_aLondon _bBritish Standards Institution _c1960 |
||
500 | _aSTD1418 | ||
999 |
_c96782 _d96782 |