| 000 | 00324nam a2200073 4500 | ||
|---|---|---|---|
| 080 |
_a _b |
||
| 245 | _aBS-00089 - Part 4 - 1990; Direct Acting Indicating Analogue Electrical Measuring Instruments and their Accessories Part 4 Specification for Special Requirements for Frequency Meters | ||
| 700 | _aBritish Standards Institution | ||
| 260 |
_aLondon _bBSI _c1990 |
||
| 300 | _a12p | ||
| 999 |
_c36067 _d36067 |
||