4. Radiant energy
  5. Photocells; circuits and apparatus
  6. Optical or pre-photocell system

Lawrence J. Jones

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Capacitance level sensor

Electrical transmission or interconnection systems – Switching systems – Condition responsive
Patent

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Controller for ultrasonic sensors

Measuring and testing – Instrument proving or calibrating – Volume of flow – speed of flow – volume rate of flow – or mass...
Patent

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Smoke detection and disconnection apparatus

Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent

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Ultrasonic sensor for very high temperatures and pressures

Measuring and testing – Vibration – By mechanical waves
Patent

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Profile ID: LFUS-PAI-P-722843

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