4. Bleaching and dyeing; fluid treatment and chemical modification
  5. Bleaching
  6. Chemical

Douglas Alexander Rankin

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Method for significantly enhancing the quality of scoured...

Bleaching and dyeing; fluid treatment and chemical modification – Bleaching – Chemical
Reexamination Certificate

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Production of biopolymer film, fibre, foam and adhesive...

Bleaching and dyeing; fluid treatment and chemical modification – Treatment of hides – skins – feathers and animal tissues – Depilating
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Production of soluble keratin derivaties

Chemistry: natural resins or derivatives; peptides or proteins; – Proteins – i.e. – more than 100 amino acid residues – Scleroproteins – e.g. – fibroin – elastin – silk – etc.
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2579094

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