00301nam a2200109Ia 4500080001800000100002300018245006800041250000900109260003700118300001700155583001900172  a04.01.02 W582  aWhite, Blanco T.A.  aPatents for inventions and the protection of industrial designs  a4 ed  bStevens and sonsaLondonGBc1974  alxix, 749 p.  c3/7/00kM2LMGR