4. Rotary expansible chamber devices
  5. Interengaging rotating members
  6. Helical or herringbone

Ulrich Becher

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Displacement machine having a ceramic rolling bearing

Rotary expansible chamber devices – With mechanical sealing
Reexamination Certificate

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Double worm system

Rotary expansible chamber devices – Weight balanced working member or partition
Patent

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Rotary piston machine for compressible media

Rotary expansible chamber devices – Interengaging rotating members
Reexamination Certificate

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Screw rotor set

Rotary expansible chamber devices – Interengaging rotating members – Helical or herringbone
Patent

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Twin feed screw

Rotary expansible chamber devices – Interengaging rotating members – Helical or herringbone
Patent

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Profile ID: LFUS-PAI-P-383633

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