4. Chemistry: electrical current producing apparatus, product, and
  5. With pressure equalizing means for liquid immersion operation

Michael A. Hofmann

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Proton conducting polymer membranes

Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Reexamination Certificate

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Sulfonimide-containing poly(arylene ether)s and poly(arylene...

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-2712359

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