000 00284 a2200109 4500
001 64457
082 _aG-608 TOO
090 _c38080
_d38080
100 _aToor M.A
245 _aInventions and Patents : An Introduction to Patent system
260 _aIslamabad
_bPak Sceince Foundation
942 _aNUST-CAE
_kG-608 TOO
999 _c299530
_d299530