| 000 | nam a22 4500 | ||
|---|---|---|---|
| 245 | _aSpecification for miniaturer and moulded casa circuit-breakers : part 1 miniature air-break circuit breaker for a.c. circuit | ||
| 260 |
_aLondon _bBritish Standards Institution _c1965 |
||
| 710 | _aBritish Standards Institution | ||
| 942 | _c22 | ||
| 999 |
_c4807 _d4807 |
||