Prevention of fraud in practice before Patent office. Hearing before the Committee on patents, House of representatives, Seventy-first Congress, second session, on H.R. 699, a bill to prevent fraud, deception, or improper practice in connection with business before the United States Patent office, and for other purposes. January 20, 1930.

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Bibliographic Details
Corporate author / creator:United States. Congress. House. Committee on Patents
Imprint:Washington, U.S. Govt. print. off., 1930.
Description:ii, 69 p. 23 cm.
Format: U.S. Federal Government Document Print Book
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Notes:Albert H. Vestal, chairman. classification:Y 4.P 27/1:F 86/3