This 96-page brief by attorneys Grosvenor P. Lowrey, Edward N. Dickerson, and John K. Porter appears in Volume 73—the third of three volumes of litigation records in Atlantic and Pacific Telegraph Company v. George B. Prescott, Western Union Telegraph Company, Lemuel W. Serrell and Thomas A. Edison. The so-called Quadruplex Case involved rights and title to seven Edison patent applications pertaining to duplex and quadruplex telegraphy.
