United States. Patent Office & Willis, O. C. (1927). In Court of Appeals of D.C., Oct. term, 1927, patent appeal No. 2052, in matter of application of Olo C. Willis, design for suction cleaner handle; brief for Commissioner of Patents. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Patent Office and Olo C. Willis. In Court of Appeals of D.C., Oct. Term, 1927, Patent Appeal No. 2052, in Matter of Application of Olo C. Willis, Design for Suction Cleaner Handle; Brief for Commissioner of Patents. Washington, D.C.: [publisher not identified], 1927.
MLA (9th ed.) CitationUnited States. Patent Office and Olo C. Willis. In Court of Appeals of D.C., Oct. Term, 1927, Patent Appeal No. 2052, in Matter of Application of Olo C. Willis, Design for Suction Cleaner Handle; Brief for Commissioner of Patents. [publisher not identified], 1927.