Publish Year Decade: 1940 - 1949 / Sudoc Stem: C 21.12 - Blacklight Search Results

Start Over Publish Year Decade 1940 - 1949 Sudoc Stem C 21.12

41. 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.

42. 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.15, rev., etc.

43. Patents. [Manual of classification of patents. 19401 errata and minor correction sheet, July 1-Dec. 31, 1940.

Corporate/Agency Authors:: Patent Office
Publisher:: Patent Office
Date:: [1941.]
SuDoc number:: C 21.12:940/errata 940-2

44. Patents. [Manual of classification of patents. 1940] errata and minor correction sheet, Jan. 1-June 30, 1941.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1941.]
SuDoc number:: C 21.12:940/errata 941

45. 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

46. 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.

47. 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.

48. 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

49. 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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