United States. Patent Office & Frank, R. J. (1931). In U.S. Court of Customs and Patent Appeals, patent appeal No. 2700, in re Robert J. Frank, ground rod clamp; brieffor Commissioner of Patents. U.S. Government Printing Office.
Chicago Style (17th ed.) CitationUnited States. Patent Office and Robert J. Frank. In U.S. Court of Customs and Patent Appeals, Patent Appeal No. 2700, in Re Robert J. Frank, Ground Rod Clamp; Brieffor Commissioner of Patents. [Washington?]: U.S. Government Printing Office, 1931.
MLA (9th ed.) CitationUnited States. Patent Office and Robert J. Frank. In U.S. Court of Customs and Patent Appeals, Patent Appeal No. 2700, in Re Robert J. Frank, Ground Rod Clamp; Brieffor Commissioner of Patents. U.S. Government Printing Office, 1931.
Warning: These citations may not always be 100% accurate.