Publish Year Decade: 1950 - 1959 / Sudoc Stem: C 21.3 - Blacklight Search Results

Start Over Publish Year Decade 1950 - 1959 Sudoc Stem C 21.3

51. Classification bulletins 227-242, containing classification definitions of classes revised by Gasification Group of Patent Office, to include all changes through order 60, dated Nov. 16, 1949 [1949.]. 233. Class 98, Ventilation.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [March 1950]
SuDoc number:: C 21.3:227-242

52. Classification bulletins 227-242, containing classification definitions of classes revised by Gasification Group of Patent Office, to include all changes through order 60, dated Nov. 16, 1949 [1949.]. 234. Class 99, Foods and beverages.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [March 1950]
SuDoc number:: C 21.3:227-242

53. Classification bulletins 227-242, containing classification definitions of classes revised by Gasification Group of Patent Office, to include all changes through order 60, dated Nov. 16, 1949 [1949.]. 235. Class 102, Ammunition and explosive devices.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [March 1950]
SuDoc number:: C 21.3:227-242

54. Classification bulletins 227-242, containing classification definitions of classes revised by Gasification Group of Patent Office, to include all changes through order 60, dated Nov. 16, 1949 [1949.]. 236. Class 103, Pumps.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [March 1950]
SuDoc number:: C 21.3:227-242

55. Classification bulletins 227-242, containing classification definitions of classes revised by Gasification Group of Patent Office, to include all changes through order 60, dated Nov. 16, 1949 [1949.]. 237. Class 106, Compositions, coating or plastic.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [March 1950]
SuDoc number:: C 21.3:227-242

56. Classification bulletins 227-242, containing classification definitions of classes revised by Gasification Group of Patent Office, to include all changes through order 60, dated Nov. 16, 1949 [1949.]. 238. Class 107, Bread, pastry, and confection making.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [March 1950]
SuDoc number:: C 21.3:227-242

57. Classification bulletins 227-242, containing classification definitions of classes revised by Gasification Group of Patent Office, to include all changes through order 60, dated Nov. 16, 1949 [1949.]. 239. Class 108, Roofs.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [March 1950]
SuDoc number:: C 21.3:227-242

58. Classification bulletins 227-242, containing classification definitions of classes revised by Gasification Group of Patent Office, to include all changes through order 60, dated Nov. 16, 1949 [1949.]. 240. Class 111, Planting.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [March 1950]
SuDoc number:: C 21.3:227-242

59. Classification bulletins 227-242, containing classification definitions of classes revised by Gasification Group of Patent Office, to include all changes through order 60, dated Nov. 16, 1949 [1949.]. 241. Class 112, Sewing machines.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [March 1950]
SuDoc number:: C 21.3:227-242

60. Classification bulletins 227-242, containing classification definitions of classes revised by Gasification Group of Patent Office, to include all changes through order 60, dated Nov. 16, 1949 [1949.]. 242. Class 113, Sheet metal ware making.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [March 1950]
SuDoc number:: C 21.3:227-242

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