FRANCIS J. W. FORD, District Judge.
The present proceeding deals with the issues of the validity and infringement of Pierce patents 2,133,643 and 2,266,070, these being the only issues now remaining before this court in this protracted litigation involving a group of six patents issued to Pierce in the general field of the use of piezoelectric crystals in radio broadcasting and reception. See Pierce v. American Communications Co., Inc., D.C.,
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