4. Optical waveguides
  5. With optical coupler
  6. Input/output coupler

John J. Christensen

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Electromechanical chaotic chiming mechanism

Communications: electrical – Audible indication – Percussion-type sound producer
Patent

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Indoor chimes

Measuring – testing – or signalling instruments – Security or signal instrument or casing – Aural – i.e. – audible
Patent

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Optical power splitter for splitting high power light

Optical waveguides – With optical coupler – Input/output coupler
Patent

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System for registration, identification and verification of item

Image analysis – Pattern recognition – Template matching
Patent

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System for verification of unique items

Image analysis – Pattern recognition – Template matching
Patent

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Profile ID: LFUS-PAI-P-161352

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