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2152218
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Patent Grant
2152218
References
Source
Patent Number
2,152,218
Date Filed
Not available
Date Issued
Tuesday, March 28, 1939
85 years ago
CPC
D06P3/799 - preparing azo dyes on the material
C08K5/20 - Carboxylic acid amides
US Classifications
524 - Synthetic resins or natural rubbers
324 - Electricity: measuring and testing
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