Publish Year Decade: 1920 - 1929 / Sudoc Stem: C 21.5/a 1 - Blacklight Search Results

Start Over Publish Year Decade 1920 - 1929 Sudoc Stem C 21.5/a 1

41. Patents. Classification of patents issued July 7-28, 1925.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1925.]
SuDoc number:: C 21.5/a 1:336/1-4

42. Patents. Classification of patents issued June 2-30, 1925.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1925.]
SuDoc number:: C 21.5/a 1:335/1-5

43. Patents. Classification of patents issued May 5-26, 1925.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1925.]
SuDoc number:: C 21.5/a 1:334/1-4

44. Patents. Classification of patents issued Oct. 6-27, 1925.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1925.]
SuDoc number:: C 21.5/a 1:339/1-4

45. Patents. Classification of patents issued Sept. 1-29, 1925.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1925.]
SuDoc number:: C 21.5/a 1:338/1-5

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