The story of the American patent system.: 1790-1952.

The story of the American patent system. 1790-1952.

1953

KF3120.Z9 U52 (Mapit)

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Title

The story of the American patent system. 1790-1952.

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Imprint

[Washington] : [U.S. Govt. Print. Off.], [1953]

Description

viii, 35 pages : tables. ; 24 cm

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KF3120.Z9 U52

Language

English

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