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31. General information concerning plant patents. Edition of Jan. 1965.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [1965.]
SuDoc number:: C 21.2:P 27/6/965

32. Answers to questions frequently asked about patents.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [1964.]
SuDoc number:: C 21.2:P 27/9/964

33. How to obtain information from United States patents.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [1964.]
SuDoc number:: C 21.2:In/3/964

34. Obtaining information from patents.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: Jan. 1964
SuDoc number:: C 21.2:In 3/2/964

35. Patents & inventions, information aid for inventors.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: Revised edition. 1964
SuDoc number:: C 21.2:P 27/10/964

36. U.S. Department of Commerce helps you progress through patents, promoting economic growth.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [1964.]
SuDoc number:: C 21.2:P 27/12

37. Obtaining information from patents.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: Apr. 1963
SuDoc number:: C 21.2:In 3/2/963

38. Celebration of American patent system 1836-1961, complete summary of proceedings in observance of 125th anniversary of United States patent act of 1836, Washington, D.C., Oct. 18-25, 1961.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [1963.]
SuDoc number:: C 21.2:P 27/11/pt.1,2

39. Celebration of American patent system 1836-1961, pt. 2, Proceedings of International Patent Office Workshop on Information Retrieval [Oct. 23-25, 1961], sponsored by Patent Office, Patent Office Society and supported by National Science Foundation.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [1963.]
SuDoc number:: C 21.2:P 27/11/pt.2

40. General information concerning trademarks; May 1963.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [1963.]
SuDoc number:: C 21.2:T 67/963

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