St. Louis, Missouri, 1968.
St. Louis, Missouri. 1968.
With Vernon F. Braun: Patent #3,386,326; June 4, 1968; combination action.
[In the patent document, Campbell-s full name is Richard H. Campbell Jr., and his location is Gilford, New Hampshire; Vernon F. Braun-s location is St. Louis, Missouri.-Ed. Source: Patent document at the U.S. Patent Office website, http://pdfpiw.uspto.gov/.piw?PageNum=0&docid=03386326&IDKey=09F74CD0D5E7%0A&HomeUrl=http%3A%2F%2Fpatft.uspto.gov%2Fnetahtml%2FPTO%2Fpatimg.htm.]
There are no entries in the database that describe organs by Richard Campbell Jr.
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