4. Abrading
  5. Flexible-member tool, per se
  6. Interrupted or composite work face

Kazuhiko Otawa

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Fuel cell separator

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

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Fuel cell separator and production method therefor

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

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Polishing pad

Abrading – Flexible-member tool – per se – Interrupted or composite work face
Patent

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Separator for a fuel cell and manufacturing method of the...

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

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Profile ID: LFUS-PAI-P-1805078

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