4. Electrical audio signal processing systems and devices
  5. Hearing protectors, electrical

Edwin Langberg

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Active noise reduction system

Electrical audio signal processing systems and devices – Hearing protectors – electrical
Patent

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Active sound absorber

Electrical audio signal processing systems and devices – Hearing protectors – electrical
Patent

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Catheter with radiofrequency heating applicator

Surgery – Truss – Pad
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Detecting the presence or absence of a coating on a substrate

Optics: measuring and testing – Inspection of flaws or impurities – Having predetermined light transmission regions
Patent

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Digitizer and position encoders and calibration system for same

Telegraphy – Systems – Position coordinate determination for writing
Patent

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Profile ID: LFUS-PAI-P-138726

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