4. Heating
  5. Work chamber having heating means
  6. Combustion products heat work by contact

Gerhard Welzig

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Apparatus for controlling gas flows in vacuum furnaces

Heating – Work chamber having heating means – Combustion products heat work by contact
Patent

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Apparatus for the treatment of metallic workpieces with...

Pumps – Motor driven – Electric or magnetic motor
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1529458

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