Publisher: Patent Office / Catalog Issue Year Decade: 1930 - 1939 / Sudoc Stem: C 21.12 - Blacklight Search Results

Start Over Publisher Patent Office Catalog Issue Year Decade 1930 - 1939 Sudoc Stem C 21.12

1. Patents. Classification of patents issued Sept. 6-27, 1938. [substitute page containing corrections].

Corporate/Agency Authors:: Patent Office
Publisher:: Patent Office
Date:: [1938.]
SuDoc number:: C 21.12:929/p.136a/rev.

2. Patents. [Manual of classification of patents, 1929, substitute pages containing corrections.]

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: 1938
SuDoc number:: C 21.12:929/p.153-156, rev., etc.

3. Patents. [Manual of classification of patents, 1929, substitute pages containing corrections.]

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: 1938
SuDoc number:: C 21.12:929/p.19-20, rev., etc.

4. Patents. [Manual of classification of patents, 1929, substitute pages containing corrections.]

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: 1938 reprint [with changes]
SuDoc number:: C 21.12:929/P 243-244/rev.rep.

5. Patents. [Manual of classification of patents, 1929, substitute pages containing corrections.]

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: 1938
SuDoc number:: C 21.12:929/p 235-236A

6. Patents. [Manual of classification of patents, 1929] errata and minor correction sheet [July 1-Dec. 31, 1937].

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1938.]
SuDoc number:: C 21.12:929/errata 937-2

7. Patents. [Manual of classification of patents, 1929] errata and minor correction sheet, Jan. 1-June 30, 1938.

Corporate/Agency Authors:: Patent Office
Publisher:: Patent Office
Date:: [1938.]
SuDoc number:: C 21.12:929/errata 938

8. Patents. Classification of patents issued Apr. 5-26, [substitute pages containing corrections].

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: 1937
SuDoc number:: C 21.12:929/p.71, rev., etc.

9. Patents. [Manual of classification of patents, 1929, substitute pages containing corrections.]

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: 1937
SuDoc number:: C 21.12:929/p.1-9/rev.2, etc.

10. Patents. [Manual of classification of patents, 1929, substitute pages containing corrections.]

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: 1937
SuDoc number:: C 21.12:929/p.39-40/rev.-2, etc.

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