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11. Engineers/scientists, Patent Office.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [1972.]
SuDoc number:: C 21.2:En 3

12. Q & A about patents, answers to questions frequently asked about patents.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [1972.]
SuDoc number:: C 21.2:P 27/9/972

13. Story of United States Patent Office.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: Jan. 1972
SuDoc number:: C 21.2:P 27/3/972

14. Q & A about trademarks, answers to questions frequently asked about trademarks.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [1971.]
SuDoc number:: C 21.2:T 67/2/971

15. General information concerning patents.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: Revised Aug. 1969. [1969.]
SuDoc number:: C 21.2:P 27/969

16. Q & A about patents, answers to questions frequently asked about patents.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [1969.]
SuDoc number:: C 21.2:P 27/9/969

17. Q&A about plant patents, answers to questions frequently asked about plant patents.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [1969.]
SuDoc number:: C 21.2:P 60/2

18. Patents and inventions, information aid for inventors, step•by•step guide to help inventor, decide whether to apply for patent, obtain patent protection, promote his invention.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [Revised Apr. 1968.] [1968.]
SuDoc number:: C 21.2:P 27/10/968

19. Q & A about patents, answers to questions frequently asked about patents.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [1968.]
SuDoc number:: C 21.2:P 27/9/968

20. Q & A about patents, answers to questions frequently asked about patents.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [1967.]
SuDoc number:: C 21.2:P 27/9/967

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