KILKENNY, District Judge:
Plaintiff charges the defendant with an infringement of the Pickrell Patent, U. S. Letters Patent No. 3,033,150. Defendant counters with a challenge to the validity of the patent.
The patent covers a barge, designed for the simultaneous transport of petroleum products and dry cargo, under conditions which meet Coast Guard safety standards. Described, is a V-shaped dry cargo hold, immediately below the weather deck and extending over...
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