| 000 | 00383nam a2200121 4500 | ||
|---|---|---|---|
| 027 |
_aBS 1929 : 1953 _q1953 |
||
| 041 | _aeng | ||
| 942 | _cSD | ||
| 110 | _aBritish Standard Institution, London | ||
| 245 | _aBS 1929 : 1953 : Screw threads and external dimensions of lamps for endoscopic and diagnostic instuments | ||
| 260 |
_aLondon _bBritish Standard Institution |
||
| 500 | _aSTD574 | ||
| 999 |
_c172574 _d172574 |
||