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11. Report. Annual report of commissioner of patents to Secretary of Commerce, fiscal year 1930.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: 1930
SuDoc number:: C 21.1/2:930

12. Report. Annual report of commissioner of patents to Secretary of Commerce, fiscal year 1929.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: 1929
SuDoc number:: C 21.1/2:929

13. Report. Annual report of commissioner of patents to Secretary of Commerce fiscal year 1927.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: 1927
SuDoc number:: C 21.1/2:927

14. Report. Annual report of commissioner of patents to Secretary of Commerce, fiscal year 1926.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: 1926
SuDoc number:: C 21.1/2:926

15. Report. Annual report of commissioner of patents to Secretary of Commerce, fiscal year 1925.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: 1925
SuDoc number:: C 21.1/2:925

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