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United States. Patent and Trademark Office -- See Also the earlier heading United States. Patent Office


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2 United States. Patent and Trademark Office. / http://id.loc.gov/authorities/names/n79076648 : Patents in the knowledge-based economy / Wesley M. Cohen and Stephen A. Merrill, editors  2003 1
3 United States. Patent and Trademark Office -- Rules and practice : Manual of patent examining procedure    1
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