Author: Commerce Department / Sudoc Stem: C 21.12 - Blacklight Search Results

Start Over Author Commerce Department Sudoc Stem C 21.12

21. 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.

22. 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.

23. 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

24. 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.

25. 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.

26. 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.

27. 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.

28. 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

29. 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

30. 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.

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