United States Patent: 2454541 ( 1

Issue Date: N

Patent Grant 2454541

U.S. patent number [Application Number ] was granted by the patent office on 1948-11-23 for united states patent: 2454541 ( 1.


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United States Patent 2,454,541
Issue Date: November 23, 1948
Current U.S. Class: 525/507; 510/506; 568/609; 516/193; 516/DIG.1
Current CPC Class: C11D 1/008 (20130101); C09B 67/0086 (20130101); C07C 309/00 (20130101); Y10S 516/01 (20130101)
Current International Class: C09B 67/00 (20060101); C09B 67/46 (20060101); C11D 1/00 (20060101)


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