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DESMOND INCANDESCENT LAMP CO. v. GENERAL ELECTRIC CO.

No. 3923.

52 F.2d 725 (1931)

DESMOND INCANDESCENT LAMP CO. et al. v. GENERAL ELECTRIC CO.

Circuit Court of Appeals, Third Circuit.

September 18, 1931.

Attorney(s) appearing for the Case

Charles J. Holland, of New York City, for appellants.

Howson & Howson, of New York City (Albert G. Davis, of Schenectady, N. Y., and Hubert Howson, of New York City, of counsel), for appellee.

Before BUFFINGTON, WOOLLEY, and DAVIS, Circuit Judges.

WOOLLEY, Circuit Judge.

The bill charges infringement of the Just & Hanaman patent No. 1,018,502 and the Langmuir patent No. 1,180,159. The first is for a substantially pure tungsten filament in an incandescent lamp; the second for an incandescent lamp bulb having a tungsten filament enveloped by an atmosphere of inert gas. The case was first here on appeal from a decree of the District Court granting a preliminary injunction. We considered and decided the case...

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