THOMAS, Circuit Judge.
This is an appeal from an interlocutory decree enjoining the appellant from infringing either directly or contributorily patent No. 1,549,175, and adjudging that appellees recover damages and profits. A special master was appointed to take and report an account of such damages and profits.
The patent in question is for an "Improvement in Double-Acting Hollow-Plunger Pumps." The patent was granted to appellee Joseph G. Richardson as assignee...
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