4. Chemistry: electrical current producing apparatus, product, and
  5. Having specified venting, feeding or circulation structure
  6. Venting structure

Ulrich Wulf

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Accumulator with degassing channel

Chemistry: electrical current producing apparatus – product – and – Having specified venting – feeding or circulation structure – Venting structure
Patent

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Plug system for capping cell vents in a storage battery and...

Chemistry: electrical current producing apparatus – product – and – Means externally releasing internal gas pressure from closed... – Elastic – resilient or spring biasing valve means
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1505154

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