PER CURIAM.
Upon review of the record we find no error.
The judgment of the District Court will be affirmed on the opinion of Judge Marsh, 188 F.Supp. 510 (W.D.Pa.1960).
SIDE-O-MATIC UNLOADER CORPORATION, Appellant v. ALIQUIPPA BLOCK & SUPPLY COMPANY, Bopp Manufacturing Company, and Waterloo Unloader Corporation
295 F.2d 958
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