HEALY, Circuit Judge.
This appeal is from an interlocutory decree holding valid and infringed letters patent No. 1,747,942, issued to Karl Lanninger. Lanninger is an enemy alien, and appellee Crowley, as Alien Property Custodian, was substituted as plaintiff in his stead. Appellee California Corrugated Culvert Company is a licensee of the patentee.
The invention relates to conduits for conducting water for irrigation and other purposes, and specifically to...
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