Patent manual for employees of the United States Department of Agriculture, 1944;
Material type:
TextSeries: Miscellaneous publication (United States. Department of Agriculture) ; no. 551.Publication details: Washington, U.S. Govt. Print. Off. [1944]Description: iii, 41 p. illus. 23 cmSubject(s): LOC classification: - T223.T2 A4 1944
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