4. Fluid reaction surfaces (i.e., impellers)
  5. Specific blade structure
  6. Having wear liner, sheathing or insert

David Wiebe

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Damped airfoil blade

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Having wear liner – sheathing or insert
Patent

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Multi-direction swivel vise

Work holders – Holder mounted for movement – Means for position lock
Reexamination Certificate

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Refrigeration monitor

Data processing: measuring – calibrating – or testing – Measurement system – Performance or efficiency evaluation
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1099931

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