4. Optical waveguides
  5. With optical coupler
  6. Particular coupling structure

Duncan Robert Billson

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Digital photographic reproduction apparatus

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

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Electrostatic audio loudspeakers

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Having electrostatic element
Reexamination Certificate

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Method of inspecting food stuffs and/or associated packaging

Measuring and testing – Vibration – By mechanical waves
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2793114

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