%0 E-Resource %0 U.S. Federal Government Document %0 Journal %E United States. Patent Office %I G.P.O. %D 1920 %C Washington %G English %B Intellectual property law collection. %T Index of patents from the United States Patent Office. %U https://www.heinonline.org/HOL/Index?index=intprop/indpat&collection=intprop