General electric company, plaintiff, v. De-Forest radio company and Robelen piano company, defendants, No. 561 in equity
Subtitle: Opinion of court
Contributors: General Electric Company
Publisher: Appeal Printing Co.
Published: 1927
Place of publication: New York
Language: eng
Number of pages: 37
Subjects: Tungsten
Notes: Cover-title.

At head of title: ... District court of the United States for the district of Delaware.