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WHITMAN v. ANDRUS

Nos. 11364-11366.

194 F.2d 270 (1952)

WHITMAN et al. v. ANDRUS. ANDRUS et al. v. WHITMAN et al. BESSER MFG. CO. v. WHITMAN.

United States Court of Appeals Sixth Circuit.

February 19, 1952.

Attorney(s) appearing for the Case

L. M. Forster and I. J. Farley, Detroit, Mich., Farley, Forster & Farley, Detroit, Mich., on brief, for Hamlin F. Andrus et al. and Besser Mfg. Co.

Frank E. Liverance, Jr., Grand Rapids, Mich., Frank E. Liverance, Jr., Grand Rapids, Mich., on brief, for John A. Whitman et al.

Before HICKS, Chief Judge, and SIMONS and ALLEN, Circuit Judges.

SIMONS, Circuit Judge.

Involved in this controversy are questions of validity and infringement in respect to three patents in the art of fabricating concrete building blocks. The first patent, in the order of our consideration, is one to Gelbman et al. No. 2,275,676 for a concrete block machine granted March 10, 1942 upon an application filed August 28, 1937; the second, likewise to Gelbman et al., is for a method for making building blocks No. 2,366,780, granted...

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