| 000 | 00583 a2200241 4500 | ||
|---|---|---|---|
| 001 | 325123 | ||
| 020 | _a | ||
| 041 | _aeng | ||
| 080 | _aBISI S 6849 : part - 1 : 1973 | ||
| 245 | _aMethods of measurement of the performance characteristics of positive-displacement vacuum pumps : part - 1 : measurement of the volume rate of flow (pumpung speed) | ||
| 250 | _a | ||
| 260 | _aNew Delhi | ||
| 260 | _bISI | ||
| 260 | _c1973 | ||
| 300 | _a13 p. | ||
| 300 | _c | ||
| 856 | _u | ||
| 490 | _aISI S 6849 : part - 1 : 1973 | ||
| 700 | _a | ||
| 650 | _a | ||
| 650 | _a | ||
| 942 | _cPP | ||
| 942 | _2UDC | ||
| 999 |
_c268815 _d268815 |
||