by oxidation of hydrogen in o'-position

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  • CPC
  • C09B45/36
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Patents Grantslast 30 patents

  • Information Patent Grant

    Azo dyestuffs

    • Patent number 4,091,021
    • Issue date May 23, 1978
    • Imperial Chemical Industries Limited
    • Herbert Francis Andrew
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    3525732

    • Patent number 3,525,732
    • Issue date Aug 25, 1970
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    3317507

    • Patent number 3,317,507
    • Issue date May 2, 1967
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    2744104

    • Patent number 2,744,104
    • Issue date May 1, 1956
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    137790

    • Patent number 137,790
    • Issue date Apr 15, 1873
    • B07 - SEPARATING SOLIDS FROM SOLIDS SORTING

Patents Applicationslast 30 patents