Maca, P., & Sommer, K. (1932). In U.S. Court of Customs and Patent Appeals, patent appeal No. 2876, in matter of application of Kurt Sommer and Paul Maca, glass drilling machine; brief for Commissioner of Patents. U.S. Government Printing Office.
Chicago Style (17th ed.) CitationMaca, Paul, and Kurt Sommer. In U.S. Court of Customs and Patent Appeals, Patent Appeal No. 2876, in Matter of Application of Kurt Sommer and Paul Maca, Glass Drilling Machine; Brief for Commissioner of Patents. [Washington?]: U.S. Government Printing Office, 1932.
MLA (9th ed.) CitationMaca, Paul, and Kurt Sommer. In U.S. Court of Customs and Patent Appeals, Patent Appeal No. 2876, in Matter of Application of Kurt Sommer and Paul Maca, Glass Drilling Machine; Brief for Commissioner of Patents. U.S. Government Printing Office, 1932.