4. Gas and liquid contact apparatus
  5. Contact devices
  6. Porous mass

QVF Engineering GmbH

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Column tray

Gas and liquid contact apparatus – Contact devices – Wet baffle
Reexamination Certificate

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Glass elements with a conductive coating, the use thereof,...

Pipe joints or couplings – With casing – lining or protector – Lined
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Method for producing concentrated nitric acid and...

Distillation: processes – separatory – Distilling to separate or remove only water – From nitric acid
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Structured mass transfer packing with improved baffles

Gas and liquid contact apparatus – Contact devices – Porous mass
Reexamination Certificate

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