The SciencesForeign Patent Licensing Corporations, Vapex Mark UpheldBy Sylvester J. Liddy on November 1, 1934AdvertisementABOUT THE AUTHOR(S)Recent Articles by Sylvester J. LiddyTracking Down Your Trade Mark TitleChicken Capsules in Patent Suit, Position of Trade Mark and moreDe Forest Wins "Feed-Back" Patent Suit, Corn Cure Trade Mark and more