Catalog Record: The patent system of the United States so far as it relates to the granting of patents: a history | HathiTrust Digital Library

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The patent system of the United States so far as it relates to the granting of patents:
a history.

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Main Author: Campbell, Levin H. [from old catalog]
Language(s): English
Published: Washington, D.C., Press of McGill & Wallace, 1891.
Subjects: United States. > United States. / Patent office. [from old catalog]
Patents > Patents / United States.
Physical Description: 55 p. 21 cm.
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