PER CURIAM.
Frank N. Steigleder brought suit for infringement of Letters Patent No. 1,875,184 issued to him on August 30, 1932, based upon the making and/or selling and distributing by the defendants of ball point pens alleged to embody the invention described and claimed in said patent. Plaintiff filed a bill of particulars in response to a motion by defendants, allowed by the court. Defendants' answer denied the infringement, and averred that the patent was invalid...
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