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2239441
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Information
Patent Grant
2239441
References
Source
Patent Number
2,239,441
Date Filed
Not available
Date Issued
Tuesday, April 22, 1941
83 years ago
CPC
C08G16/0231 - containing nitrogen
C08G8/28 - Chemically modified polycondensates
C08G12/043 - with at least two compounds covered by more than one of the groups C08G12/06 - C08G12/24
C08G12/22 - with carboxylic acid amides
C08G14/06 - and monomers containing hydrogen attached to nitrogen
US Classifications
524 - Synthetic resins or natural rubbers
525 - Synthetic resins or natural rubbers
528 - Synthetic resins or natural rubbers
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