L. HAND, Circuit Judge.
The plaintiff appeals from a judgment, dismissing her complaint for the infringement of Claims one, two, three, four and six of Patent No. 1,959,264, issued to Joseph Dugan, on May 15, 1934, on an application filed March 15, 1930. Judge Rifkind held the claims invalid for lack of invention (Dugan v. Lear Avia, Inc., D.C.,
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