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WOLF MINERAL PROCESS CORP. v. MINERALS SEPARATION N. A. CORP.

No. 2557.

18 F.2d 483 (1927)

WOLF MINERAL PROCESS CORPORATION v. MINERALS SEPARATION NORTH AMERICAN CORPORATION.

Circuit Court of Appeals, Fourth Circuit.

April 12, 1927.

Attorney(s) appearing for the Case

Henry W. Anderson, of Richmond, Va., and Clifford E. Dunn, of New York City (William M. Chadbourne, Leonard A. Watson, Willis B. Rice, Clinton De W. Van Siclen, Carroll R. Ward, Alfred H. Phillips and Wellington S. Crouse, all of New York City, and Jacob F. Murbach, of Baltimore, Md., on the briefs), for appellant.

Henry D. Williams and Wm. Houston Kenyon, both of New York City, and Charles McH. Howard, of Baltimore, Md. (Lindley M. Garrison, of New York City, on the brief), for appellee.

Before WADDILL and PARKER, Circuit Judges, and GRONER, District Judge.

PARKER, Circuit Judge.

The appellant, Wolf Mineral Process Corporation, complainant in the court below, is the assignee of a certain patent, No. 787,814, issued to one J. D. Wolf, covering a mineral separation process which involves the flotation of metal particles by the buoyancy of oil. It also holds by assignment the rights claimed by Wolf in the patent of defendant, Minerals Separation North American Corporation. Defendant is the assignee of patent No. 835,120...

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