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The story of the American patent system, 1790-1952.

APA Citation

United States. Patent Office. (1953). The story of the American patent system, 1790-1952. [2d ed. Washington: U.S. Govt. Print. Off..

United States. Patent Office. The Story of the American Patent System, 1790-1952. [2d ed. Washington: U.S. Govt. Print. Off., 1953.

Warning: These citations may not always be complete (especially for serials).