4. Measuring and testing
  5. Vibration
  6. Resonance, frequency, or amplitude study

Charles F. Cole, Jr.

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Apparatus and method for determining moisture content in welding

Electricity: measuring and testing – Conductor identification or location – Inaccessible
Patent

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Electrical energy storage battery means

Batteries: thermoelectric and photoelectric – Thermoelectric – Radiation pyrometer
Patent

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Electronic mine roof bolt tester

Measuring and testing – Vibration – Resonance – frequency – or amplitude study
Patent

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Fiber optic refractometer

Optics: measuring and testing – Refraction testing – Refractive rod engages specimen
Patent

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Fluid presence detector

Geometrical instruments – Area integrators – Electrical
Patent

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Profile ID: LFUS-PAI-P-416588

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