Catalog Issue Year Decade: 1930 - 1939 / Sudoc Stem: C 21.5/a 1 - Blacklight Search Results

Start Over Catalog Issue Year Decade 1930 - 1939 Sudoc Stem C 21.5/a 1

11. Patents. Classification of patents issued Oct. 4-25, 1938.

Corporate/Agency Authors:: Patent Office
Publisher:: Patent Office
Date:: [1938.]
SuDoc number:: C 21.5/a 1:495/1-4

12. Patents. Classification of patents issued Sept. 6-27, 1938.

Corporate/Agency Authors:: Patent Office
Publisher:: Patent Office
Date:: [1938.]
SuDoc number:: C 21.5/a 1:494/1-4

13. Patents. Classification of patents issued Apr. 6-27. 1937.

Corporate/Agency Authors:: Patent Office
Publisher:: Patent Office
Date:: [1937.]
SuDoc number:: C 21.5/a 1:477/1-4

14. Patents. Classification of patents issued Aug. 3-31, 1937.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1937.]
SuDoc number:: C 21.5/a 1:481/1-5

15. Patents. Classification of patents issued Dec. 7-28, 1937.

Corporate/Agency Authors:: Patent Office
Publisher:: Patent Office
Date:: [1937.]
SuDoc number:: C 21.5/a 1:485/1-4

16. Patents. Classification of patents issued Feb. 2-23, 1937.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1937.]
SuDoc number:: C 21.5/a 1:475/1-4

17. Patents. Classification of patents issued July 6-27, 1937.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1937.]
SuDoc number:: C 21.5/a 1:480/1-4

18. Patents. Classification of patents issued June 1-20, 1937.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1937.]
SuDoc number:: C 21.5/a 1:479/1-5

19. Patents. Classification of patents issued Mar. 2-30. 1937.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1937.]
SuDoc number:: C 21.5/a 1:476/1-5

20. Patents. Classification of patents issued May 4-25, 1937.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1937.]
SuDoc number:: C 21.5/a 1:478/1-4

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