000 00622nam a2200217Ia 4500
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