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TRICO PRODUCTS CORP. v. DELMAN CORPORATION

Nos. 14021, 14022.

180 F.2d 529 (1950)

TRICO PRODUCTS CORPORATION v. DELMAN CORPORATION et al. DELMAN CORPORATION et al. v. TRICO PRODUCTS CORPORATION.

United States Court of Appeals Eighth Circuit.

March 8, 1950.

Attorney(s) appearing for the Case

Edwin T. Bean, Buffalo, N. Y. (Bean, Brooks, Buckley & Bean, Buffalo, N. Y. and Talbert Dick, Des Moines, Iowa, were with him on the brief), for Trico Products Corporation.

Charles F. Meroni, Chicago, Ill. (Rudolph L. Lowell, Des Moines, Iowa, was with him on the brief), for The Delman Corporation and for J. Paul McGinn and Mrs. J. Paul (Mary Helen) McGinn, co-partners, doing business as Eldora Mill & Manufacturing Company.

Before SANBORN, THOMAS, and JOHNSEN, Circuit Judges.

SANBORN, Circuit Judge.

The important question for decision in these cases is whether the determination by the District Court that claims 1, 3, 5, 6, 16 17 and 24 of United States Letters Patent No. 1,949,098 issued to Albert W. Becker on February 27, 1934, for a "Windshield Clearing Device," upon an application filed February 6, 1928, and claims 9, 13 and 14 of United States Letters Patent No. 2,206,814, issued to Erwin C. Horton on July 2,

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