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1922978
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Information
Patent Grant
1922978
References
Source
Patent Number
1,922,978
Date Filed
Not available
Date Issued
Tuesday, August 15, 1933
90 years ago
CPC
D06P3/60 - natural or regenerated cellulose
D06P1/224 - using vat dyes in unreduced pigment state
D06P1/32 - using oxidation dyes
D06P1/50 - Derivatives of cellulose
US Classifications
008 - Bleaching and dyeing
106 - Compositions: coating or plastic
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