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

William F. Jacobsen

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Frequency sensitive level detecting apparatus

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

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Pulsed level sensor

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

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Radiation enhanced chip encapsulant

Active solid-state devices (e.g. – transistors – solid-state diode – Housing or package – Portion of housing of specific materials
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Profile ID: LFUS-PAI-P-682050

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