Sudoc Stem: C 21.12 - Blacklight Search Results

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141. Patents. [Manual of classification of patents, 1940] errata and minor correction sheet, July 1-Dec. 31, 1943.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1944.]
SuDoc number:: C 21.12:940/errata 943-2

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

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: 1943
SuDoc number:: C 21.12:940/p.291,rev.,etc.

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

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: 1943
SuDoc number:: C 21.12:940/p.125-126,rev.,etc.

144. Patents. [Manual of classification of patents, 1940] errata and minor correction sheet, Jan. 1-Jnne 30, 1943.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1943.]
SuDoc number:: C 21.12:940/errata 943

145. Patents. [Manual of classification of patents, 1940] errata and minor correction sheet, July 1-Dec. 31, 1942.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1943.]
SuDoc number:: C 21.12:940/errata 942-2

146. Patents. [Manual of classification of patents, 1940] errata and minor correction sheet, [substitute pages containing corrections.]

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1943.]
SuDoc number:: C 21.12:940/P.87, rev., etc.

147. Patents. [substitute pages containing corrections.]

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: 1943
SuDoc number:: C 21.12:940/p.34, rev.2, etc.

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

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: 1942
SuDoc number:: C 21.12:940/p.1, rev., etc.

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

Corporate/Agency Authors:: Patent Office
Publisher:: Patent Office
Date:: 1942
SuDoc number:: C 21.12:940/p.129, rev., etc.

150. Patents. [Manual of classification of patents, 1940] errata and minor correction sheet, Jan. 1-June 30, 1942.

Corporate/Agency Authors:: Patent Office
Publisher:: Patent Office
Date:: [1942.]
SuDoc number:: C 21.12:940/errata 942

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