Columbia subject headings:
Patent laws and legislation--United States.
Research, Industrial--United States.
United States. Congress. Senate. Committee on the Judiciary. Subcommittee on Patents, Trademarks, and Copyrights.
Harvard subject headings:
Patent laws and legislation--United States.
Research, Industrial--United States.
United States. Congress. Senate. Committee on the Judiciary. Subcommittee on Patents, Trademarks, and Copyrights.
Princeton subject headings: