MANTON, Circuit Judge.
The District Court found claim 32 of the patent to Ingersoll, No. 1,339,395, claims 16 and 17 of Ingersoll patent, No. 1,383,633, and claims 16, 17, and 21 of Ingersoll patent, No. 1,547,155, valid and infringed in these suits for infringement of four patents. There were a number of other claims sued on, but, since the plaintiffs have not appealed from the disallowance of such claims as infringed, it is unnecessary to consider them here.
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