4. Electrical audio signal processing systems and devices
  5. Binaural and stereophonic
  6. Stereo speaker arrangement

Martinus Hermanus Wilhelmus Maria Van Delden

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Device having a point and a spatial sound generating-means...

Electrical audio signal processing systems and devices – Binaural and stereophonic – Stereo speaker arrangement
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Lamp having plurality of optical extraction structures

Illumination – Edge lighted panel – Light source
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Mirror with built-in display

Optical: systems and elements – Polarization without modulation – Polarization by reflection or refraction
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Mirror with built-in display

Optical: systems and elements – Extended spacing structure for optical elements – Extension of tubular element adjustable
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Mirror with built-in display

Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
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Profile ID: LFUS-PAI-P-2201969

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