Columbia subject headings:
Patent laws and legislation--United States.
United States. Patent and Trademark Office--Appropriations and expenditures.
Harvard subject headings:
Patent laws and legislation--United States.
Patent offices--United States.
Trademarks--Law and legislation--United States
United States. Patent and Trademark Office--Appropriations and expenditures.
United States. Patent and Trademark Office.
Princeton subject headings:
Patent laws and legislation--United States.
Patent offices--United States.
Trademarks--Law and legislation--United States.
United States. Patent and Trademark Office