Patent and Trademark Depository Library Program
The United States Patent and Trademark Office has a network of public, state, and academic libraries nationwide designated as Patent & Trademark Depository Libraries (PTDL). The State Library became Iowa's PTDL in 1988. As a PTDL, the U.S. Patent and Trademark Office provides us with their databases and software, official manuals, handbooks, and search tools to provide resources and assistance for Iowa's patent and trademark clientele.
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last modified
Jan 01, 2009 11:54 PM
