In Court of Appeals of D.C., Oct. term, 1907
Subtitle: In re Paul Emil Droop, playing balls for tennis and other games and method of covering and inflating same, Patent Appeal No. 445; brief for Commissioner of Patents.
Contributors: Droop, Paul E.; Tennant, Frederick A.; United States. Patent Office.
Publisher: [s.n.]
Published: 1907
Place of publication: Washington, D.C
Format: Microform
Subjects: Washington, D.C. Court of Appeals -- Trials, litigation, etc.; Patents -- United States.