YANKWICH, District Judge.
Action for infringement of Letters Patent 2,240,617, issued May 6, 1941, to P. D. Harrigan, assignor to plaintiff, Air Devices, Inc.
The claims involved are 1, 2 and 5, which read:
"1. An air-distributing device comprising a plurality of plates disposed in spaced substantially parallel relation, the front edges of said plates lying in substantially a single plane and said plates being inclined relatively to said plane, and...
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