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

31. 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

32. 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.

33. 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.

34. 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.

35. 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.

36. 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

37. Patents. [Manual of classification of patents, 1940] errata and minor correction sheet, July 1-Dec. 31, 1941.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1942.]
SuDoc number:: C 21.12:940/errata 941-2

38. 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.

39. 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.

40. 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.

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