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

Leif Stensland

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Fiber optical measurement apparatus

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

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Lensless spectrum analyzer

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent

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Optical element using multimode interference

Optical waveguides – With optical coupler – Particular coupling function
Reexamination Certificate

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Splicing aged optical fibers

Optical waveguides – With splice
Patent

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Profile ID: LFUS-PAI-P-780826

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