Publish Year Decade: 1940 - 1949 / Sudoc Stem: C 21.5/a 1 - Blacklight Search Results

Start Over Publish Year Decade 1940 - 1949 Sudoc Stem C 21.5/a 1

61. Patents. Classification of patents issued Jan. 2-30, 1940.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1940.]
SuDoc number:: C 21.5/a 1:510/1-5

62. Patents. Classification of patents issued July 2-30, 1940.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1940.]
SuDoc number:: C 21.5/a 1:516/1-5

63. Patents. Classification of patents issued June 4-25, 1940.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1940.]
SuDoc number:: C 21.5/a 1:515/1-4

64. Patents. Classification of patents issued Mar. 5-26, 1940.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1940.]
SuDoc number:: C 21.5/a 1:512/1-4

65. Patents. Classification of patents issued May 7-28, 1940.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1940.]
SuDoc number:: C 21.5/a 1:514/1-4

66. Patents. Classification of patents issued Nov. 5-26, 1940.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1940.]
SuDoc number:: C 21.5/a 1:520/1-4

67. Patents. Classification of patents issued Oct. 1-29, 1940.

Corporate/Agency Authors:: Patent Office
Publisher:: Patent Office
Date:: [1940.]
SuDoc number:: C 21.5/a 1:519/1-5

68. Patents. Classification of patents issued Sept. 3-24, 1940.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1940.]
SuDoc number:: C 21.5/a 1:518/1-4

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