4. Fluid handling
  5. Line condition change responsive valves
  6. Direct response valves

Emil Siegwart

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Apparatus for manufacturing tubes

Metal deforming – By tool-couple pressing together adjacent surface portions... – To form helically-seamed tube
Patent

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Flange connection for pipes, in particular, air pipes

Pipe joints or couplings – Packed – 'rolled-in' gasket
Reexamination Certificate

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Flexible corrugated tube

Pipes and tubular conduits – Flexible – Corrugated
Patent

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Flexible corrugated tube

Pipes and tubular conduits – Flexible – Corrugated
Patent

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Flow regulator for air ducting

Fluid handling – Line condition change responsive valves – Direct response valves
Patent

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Profile ID: LFUS-PAI-P-299524

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