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3923953
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Information
Patent Grant
3923953
References
Source
Patent Number
3,923,953
Date Filed
Not available
Date Issued
Tuesday, December 2, 1975
48 years ago
CPC
C08G73/1003 - Preparatory processes
C08G73/18 - Polybenzimidazoles
C08G73/20 - Pyrrones
C08G85/00 - General processes for preparing compounds provided for in this subclass
US Classifications
264 - Plastic and nonmetallic article shaping or treating: processes
528 - Synthetic resins or natural rubbers
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