000 00271cam a2200121ua 4500
082 _a341.7586
100 _aNarayanan , P.
245 _aPatent Law
_cNarayanan P
250 _a2.
260 _aCalcutta:
_bEastern Law House,
_c1985.
650 _aPatent Law
942 _cBK
999 _c374362
_d374362