Author: Patent Office / Catalog Issue Year Decade: 1940 - 1949 - Blacklight Search Results

Start Over Author Patent Office Catalog Issue Year Decade 1940 - 1949

1311. Patents. Classification of patents issued Sept. 3-24, 1940.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1940.]
SuDoc number:: C 21.5/a 1:518/1-4

1312. Patents. General information concerning patents, Oct. 1, 1940.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: 1940
SuDoc number:: C 21.2:P 27/940

1313. Patents. Index of patents issued from Patent Office, 1939.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: 1940
SuDoc number:: C 21.5/2:939

1314. Patents. Manual of classification of patents; [revised to] Jan. 1, 1940.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: 1940
SuDoc number:: C 21.12:940

1315. Patents. Story of American patent system, 1790-April 10-1940.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1940.]
SuDoc number:: C 21.2:P 27/3

1316. Patents. Supplement to General information concerning patents pamphlet: Patent applications by foreign applicants.

Corporate/Agency Authors:: Patent Office
Publisher:: Patent Office
Date:: [1940.]
SuDoc number:: C 21.2:P 27/939/supp.

1317. Patents. [Manual of classification of patents, 1940, substitute pages containing corrections.]

Corporate/Agency Authors:: Patent Office
Publisher:: Patent Office
Date:: 1940-41
SuDoc number:: C 21.12:940/p.51, rev., etc.

1318. Patents. [Manual of classification of patents, 1940, substitute pages containing corrections.]

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: 1940
SuDoc number:: C 21.12:940/p.67-68, rev., etc.

1319. Patents. [Manual of classification of patents, 1940] errata and minor correction sheet, Jan. 1-June 30, 1940.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1940.]
SuDoc number:: C 21.12:940/errata 940

1320. Patents. [substitute pages containing corrections.]

Corporate/Agency Authors:: Patent Office
Publisher:: Patent Office
Date:: 1940
SuDoc number:: C 21.12:940/p.35-36, rev., etc.

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