Frey Turbodynamics, Ltd.

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Portland, OR, US

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Oscillating dual bladder balanced pressure proportioning pump system
- Patent number 5,957,153
- Issue date Sep 28, 1999
- Frey Turbodynamics, Ltd.
- Max Frey
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

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