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GRAVER MFG. CO. v. LINDE CO.

No. 2.

339 U.S. 605 (1950)

GRAVER TANK & MFG. CO., INC. ET AL. v. LINDE AIR PRODUCTS CO.

Supreme Court of United States.

Decided May 29, 1950.

Attorney(s) appearing for the Case

Thomas v. Koykka argued the cause for petitioners. With him on the brief were John F. Oberlin, Ashley M. Van Duzer, James R. Stewart and Charles L. Byron.

John T. Cahill and Richard R. Wolfe argued the cause for respondent. With them on the brief were James A. Fowler, Jr. and Loftus E. Becker.

MR. JUSTICE JACKSON delivered the opinion of the Court.

Linde Air Products Co., owner of the Jones patent for an electric welding process and for fluxes to be used therewith, brought an action for infringement against Lincoln and the two Graver companies. The trial court held four flux claims valid and infringed and certain other flux claims and all process claims invalid. 75 U. S. P. Q. 231. The Court of Appeals affirmed findings of validity and infringement as to...

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