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11. Rules of practice. Rules of practice in Patent Office.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: Revised Feb. 1, 1931. 1931
SuDoc number:: C 21.8:931

12. Rules of practice. Rules of practice in Patent Office. Errata and correction sheet.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1931.]
SuDoc number:: C 21.8:931/errata

13. Rules of practice in Patent Office. Revised Feb. 1, 1929.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: 1929
SuDoc number:: C 21.8:929

14. Rules of practice in Patent Office.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: Revised Jan. 1, 1927. 1927
SuDoc number:: C 21.8:927

15. Rules of practice in Patent Office.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: Revised July 1, 1925. 1925
SuDoc number:: C 21.8:925

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