4. Organic compounds -- part of the class 532-570 series
  5. Organic compounds
  6. Amino nitrogen containing

Charles S. Steele

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Decolorizing ethanolamines with alkylene oxides

Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing
Patent

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Device and method for sharpening blades

Abrading – Abrading process – Razor – knife – or scissors sharpening
Reexamination Certificate

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Method of decolorizing mixtures of aminoethylpiperazine, a polyo

Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent

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Profile ID: LFUS-PAI-P-905025

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