00345nam a2200109Ia 450000500170000008000180001710000220003524500840005726000600014130000150020158300190021620260716043050.0 a04.01.01 L153 aLadas, Stephen P. aPatents, trademarks, and related rights : national and international protection bHarvard University P.aCambridge, MassachusettsUSc1975 axv, 823 p. c3/7/00kM2LMGR