00298nam a2200097 a 450000500170000008200240001710000220004124500860006326000320014930000190018120251203091855.0  a658.472027,bD, sat  aSatyawrat Ponkshe  aManagement of intellectual property : patents, designs, trade marks and copyright  aPunebBhate & Ponkshec1991  axx, 316p, 22cm