4. Synthetic resins or natural rubbers -- part of the class 520 ser
  5. Synthetic resins
  6. From fluorine-containing reactant

Yuhiko Yamashita

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(2,3,4,5,6-pentafluorobenzoyl) diphenyl ether compound, and...

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From fluorine-containing reactant
Reexamination Certificate

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Polycyanoaryl ether and method for production thereof

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2034623

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