American Tri-Ergon Corporation. No. 661, in Supreme Court of United States, Oct. term, 1941, American Tri-Ergon Corporation and Tri-Ergon Holding A. G. v. Radtke Patents Corporation [et al. and] Conway P. Coe, commissioner of patents, on petition for writ of certiorari to United States Court of Appeals for District of Columbia; brief for respondent commissioner of patents in opposition.

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