4. Measuring and testing
  5. Volume or rate of flow
  6. By measuring vibrations or acoustic energy

Roger M. Langdon

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Force sensors

Measuring and testing – Specimen stress or strain – or testing by stress or strain... – Specified electrical sensor or system
Patent

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Helmet mounted display

Optical: systems and elements – Holographic system or element – Head up display
Patent

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Laser radar with reference beam storage

Optics: measuring and testing – Range or remote distance finding – With photodetection
Patent

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Liquid level sensing devices

Measuring and testing – Liquid level or depth gauge
Patent

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Liquid-level measurement

Measuring and testing – Liquid level or depth gauge
Patent

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Profile ID: LFUS-PAI-P-218168

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