Author: Patent Office / Catalog Issue Year Decade: 1930 - 1939 - Blacklight Search Results

Start Over Author Patent Office Catalog Issue Year Decade 1930 - 1939

1441. Patents. Classification of patents issued Oct. 2-30, 1934.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1934.]
SuDoc number:: C 21.5/a 1:447/1-5

1442. Patents. Classification of patents issued Sept. 4-25, 1934.

Corporate/Agency Authors:: Patent Office and Agriculture Department
Publisher:: Patent Office
Date:: [1934.]
SuDoc number:: C 21.5/a 1:446/1-4

1443. Patents. General information concerning patents, Apr. 1933.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [Reprint]. 1934
SuDoc number:: C 21.2:P 27/933-2

1444. Patents. Index of patents issued from Patent Office, 1933.

Corporate/Agency Authors:: Patent Office
Publisher:: Patent Office
Date:: 1934
SuDoc number:: C 21.5/2:933

1445. Patents. [Manual of classification of patents, 1920, substitute pages containing corrections.]

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1934.]
SuDoc number:: C 21.12:929/p.41,42/rev.etc.

1446. Patents. [Manual of classification of patents, 1929, substitute pages containing corrections.]

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: 1934
SuDoc number:: C 21.12:929/p.279-279A/rev.934

1447. Patents. [Manual of classification of patents, 1929, substitute pages containing corrections.]

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: 1934
SuDoc number:: C 21.12:929/p.43-46/rev.

1448. Patents. [Manual of classification of patents, 1929, substitute pages containing corrections.]

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1934.]
SuDoc number:: C 21.12:929/p.1-9/rev.,etc.

1449. Patents. [Manual of classification of patents, 1929] [substitute pages containing corrections].

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: 1934
SuDoc number:: C 21.12:929/p.163-164A/rev.

1450. Patents. [Manual of classification of patents, 1929] errata and minor correction sheet, Jan. 1-Dec. 31, 1933.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1934.]
SuDoc number:: C 21.12:929/errata 933

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