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

Volker Schaefer

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Hydrolysis-stable film comprising a polyester with a...

Stock material or miscellaneous articles – Composite – Of polyester
Reexamination Certificate

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Method for the production of ω-aminoalkylsulphonic acids

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

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