Author: Commerce Department / Sudoc Stem: C 21.12 - Blacklight Search Results

Start Over Author Commerce Department Sudoc Stem C 21.12

71. Patents. [Manual of classification of patents, 1929, substitute pages containing corrections.]

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1932.]
SuDoc number:: C 21.12:929/p.43, 44

72. Patents. [Manual of classification of patents, 1929] errata and minor correction sheets, Jan. 1-Dec. 31, 1931.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1932.]
SuDoc number:: C 21.12:929/errata 931

73. Patents. [Manual of classification of patents, 1929, substitute pages containing corrections.]

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1931.]
SuDoc number:: C 21.12:929/p.225-228a

74. Patents. [Manual of classification of patents, 1929] errata and correction sheet, Jan. 1-Dec. 31, 1930.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1931.]
SuDoc number:: C 21.12:929/errata 930

75. Patents. [Manual of classification of patents, 1929] errata and minor correction sheet, Jan. 1-Dec. 31, 1929.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1930.]
SuDoc number:: C 21.12:929/errata 929

76. Patents. Manual of classification of patents.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [Revised to] Jan. 1, 1929. 1929
SuDoc number:: C 21.12:929

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