4. Rotary expansible chamber devices
  5. With mechanical sealing

Richard David Bothmann

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Dispensing Apparatus

Dispensing – Plural sources – compartment – containers and/or spaced jacket – Three or more diverse sources
Patent

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Gear pump having members with different hardnesses

Rotary expansible chamber devices – With mechanical sealing
Patent

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Profile ID: LFUS-PAI-P-47034

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