000 | 00622nam a2200217Ia 4500 | ||
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003 | HQRS | ||
005 | 20181021231223.0 | ||
008 | 150617s2015 xx 000 0 eng d | ||
040 |
_aHQRS _beng _cHQRS |
||
041 | _heng | ||
110 | _aUnited Nations Industrial Development Organization | ||
245 | _aUsers' guides to the international patent classification | ||
260 |
_aVienna: _bUNIDO, _c1981 |
||
300 | _av.p. | ||
500 | _av. 1 Fertilizers v. 2 Iron and Steel | ||
650 | _aPatent classification | ||
650 | _aPatents | ||
650 |
_aPatent _xLaw and legislation |
||
365 |
_aINR _bComp. |
||
942 |
_2udc _cBK |
||
999 |
_c1232 _d1232 |