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

Richard N. Poorman

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Forward and back scattering loss compensated smoke detector

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

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Optical spectral analyzer

Multiplex communications – Wide area network – Packet switching
Patent

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Self-cleaning system for monitoring the opacity of combustion en

Optics: measuring and testing – For light transmission or absorption – Of fluent material
Patent

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System and method for controlling movement of a marine vessel

Marine propulsion – Means to control the supply of energy responsive to a sensed...
Reexamination Certificate

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Profile ID: LFUS-PAI-P-812469

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