4. Rotary expansible chamber devices
  5. Multistage
  6. Interengaging rotary members

Mamoru Kuwahara

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Diaphragm unit

Pumps – Motor driven – Fluid motor
Reexamination Certificate

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Fluid pump

Pumps – Motor driven – Electric or magnetic motor
Reexamination Certificate

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Gas supplying device for vacuum pump

Rotary expansible chamber devices – Multistage – Interengaging rotary members
Reexamination Certificate

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Roots pump

Rotary expansible chamber devices – Multistage
Reexamination Certificate

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Shaft seal structure of vacuum pumps

Rotary expansible chamber devices – With mechanical sealing
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2519732

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