4. Organic compounds -- part of the class 532-570 series
  5. Organic compounds
  6. Carboxylic acids and salts thereof

Takeharu Tanaka

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Method for producing 2,6-dimethylnaphthalene

Chemistry of hydrocarbon compounds – Purification – separation – or recovery – By cooling of liquid to obtain solid – e.g. – crystallization,...
Reexamination Certificate

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Method for purifying crude 2,6-naphthalenedicarboxylic acid

Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
Reexamination Certificate

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Method of recovering polyvinyl chloride and apparatus therefor

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Process of treating scrap or waste product containing solid...
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2797190

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