Singer Manufacturing Co. v. Birginal-Bigsby Corp., Patent Appeal No. 6948.

Citation: 138 USPQ 63, 319 F.2d 273

Case Date: June 20, 1963

Court: U.S. Court of Customs and Patent Appeals (CCPA)

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Singer Manufacturing Co. v. Birginal-Bigsby Corp., Patent Appeal No. 6948.

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