000 00397nam a2200157Ia 4500
008 160615s9999 xx 000 0 und d
100 _aPATENT OFFICE
245 _aJournal of the patent office technical society. Vol-18
260 _aCalcutta
260 _bPatent Office Technical Society
260 _c1984
300 _a142 p.
942 _cBooks
999 _c15509
_d15509