Author: Commerce Department / Catalog Issue Year Decade: 1940 - 1949 - Blacklight Search Results

Start Over Author Commerce Department Catalog Issue Year Decade 1940 - 1949

9171. 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

9172. 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

9173. 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

9174. 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

9175. 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

9176. 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.

9177. 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

9178. Perrine, Lester E. In Court of Customs and Patent Appeals, patent appeal no. 4310, in re Lester E. Perrine, combustible mixture regulating apparatus; brief for commissioner of patents.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1940.]
SuDoc number:: C 21.10:P 428/2

9179. Petroleum. Isolation of 3-methylhexane, trans-1, 2-dimethylcyclopentane, and trans-1, 3-dimethylcyclopentane from petroleum [with list of references]; by Augustus R. Glasgow, jr.

Corporate/Agency Authors:: National Bureau of Standards and Commerce Department
Publisher:: National Bureau of Standards
Date:: [1940.]
SuDoc number:: C 13.22/a:1298

9180. Petroleum. Separation of aromatic hydrocarbons, and isolation of n-dodecane, naphthalene, 1-methylnaphthalene, and 2-methylnapbthalene, from kerosene fraction of petroleum [with list of references]; by Beveridge J. Mair and Anton J. Streiff.

Corporate/Agency Authors:: National Bureau of Standards and Commerce Department
Publisher:: National Bureau of Standards
Date:: [1940.]
SuDoc number:: C 13.22/a:1289

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