L. HAND, Circuit Judge.
This is an appeal by the defendant from an injunction, pendente lite, upon claim one of patent No. 1,405,173, issued on January 31, 1922, to H. J. Wheeler; upon claims one and two of patent No. 1,894,234, issued January 3, 1933, to G. R. Engstrand; and upon claim five of patent No. 1,964,726, issued on July 3, 1934, to the same Engstrand. All three patents relate to a method of pumping oil sludge or sediment from the bottom of a ship over the...
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