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

Start Over Author Patent Office Publish Year Decade 1940 - 1949

1141. Patents. Classification of patents issued May 6-27, 1941.

Corporate/Agency Authors:: Patent Office
Publisher:: Patent Office
Date:: [1941.]
SuDoc number:: C 21.5/a 1:526/1-4

1142. Patents. Classification of patents issued Nov. 4-25, 1941.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1941.]
SuDoc number:: C 21.5/a 1:532/1-4

1143. Patents. Classification of patents issued Oct. 7-28, 1941.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1941.]
SuDoc number:: C 21.5/a:531/1-4

1144. Patents. Classification of patents issued Sept. 2-30, 1941.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1941.]
SuDoc number:: C 21.5/a 1:531/1-5

1145. Patents. Index of patents issued from Patent Office, 1940.

Corporate/Agency Authors:: Patent Office
Publisher:: Patent Office
Date:: 1941
SuDoc number:: C 21.5/2:940

1146. Patents. United States patent law sesquicentennial celebration, record of proceedings commemorating 150th anniversary of signing of 1st United States patent law, 1790-April 10-1940.

Corporate/Agency Authors:: Patent Office
Publisher:: Patent Office
Date:: [1941.]
SuDoc number:: C 21.2:P 27/4

1147. Patents. [Manual of classification of patents, 1940, substitute pages containing corrections.]

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: 1941
SuDoc number:: C 21.12:40/p.21-22, rev.

1148. Patents. [Manual of classification of patents, 1940, substitute pages containing corrections.]

Corporate/Agency Authors:: Patent Office
Publisher:: Patent Office
Date:: 1941
SuDoc number:: C 21.12:940/p.137, rev., etc.

1149. Patents. [Manual of classification of patents, 1940, substitute pages containing corrections.]

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: 1941
SuDoc number:: C 21.12:940/p.283,rev.,etc.

1150. Patents. [Manual of classification of patents, 1940] [substitute pages containing corrections.]

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: 1941
SuDoc number:: C 21.12:940/p.27-28,rev.,etc.

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