000 00326nam a22001577a 4500
003 OSt
020 _a9788171773817
082 _a346.73 NAR
100 _aNarayanan, P.
245 _aPatent Law
250 _a4th ed.
260 _aKolkata
_bEastern Law House
_c2017
300 _a1041p.
650 _aPatent
942 _2ddc
_cBK
999 _c7217
_d7217