4. Rotary expansible chamber devices
  5. Heat exchange or non-working fluid lubricating or sealing
  6. Non-working fluid passage in inner working or reacting member

Christian Dahmlos

Inventor

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Screw compressor with cooling

Rotary expansible chamber devices – Heat exchange or non-working fluid lubricating or sealing – Non-working fluid passage in inner working or reacting member
Patent

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Screw spindle vacuum pump and operating method

Rotary expansible chamber devices – Interengaging rotating members – Helical or herringbone
Reexamination Certificate

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Vacuum pump

Pumps – Motor driven – Electric or magnetic motor
Patent

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Profile ID: LFUS-PAI-P-1387050

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