4. Signals and indicators
  5. Indicators
  6. Fluid flow

Charles H. Popenoe

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Fluid pressure indicator

Signals and indicators – Indicators – Fluid flow
Patent

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Light reflective opti-mechanical displacement microindicator

Measuring and testing – Ductility or brittleness
Patent

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Method of making a fastening device for visually indicating...

Metal working – Method of mechanical manufacture – Assembling or joining
Reexamination Certificate

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Opti-mechanical displacement indicator with high sensitivity

Expanded – threaded – driven – headed – tool-deformed – or locked-thr – With means to indicate application of predetermined... – Color indicator
Patent

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Opti-mechanical displacement microindicator

Signals and indicators – Navigation devices
Patent

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Profile ID: LFUS-PAI-P-247225

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