4. Communications, electrical: acoustic wave systems and devices
  5. Signal transducers
  6. Receivers

Piet Bergveld

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Device for measuring a quantity which influences a field-effect

Electricity: measuring and testing – Conductor identification or location – Inaccessible
Patent

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Electroacoustic transducer of the so-called "electret" type, and

Communications – electrical: acoustic wave systems and devices – Signal transducers – Receivers
Patent

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Electroacoustic transducer of the so-called "electret" type, and

Metal working – Electric condenser making
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Electrochemical sensing apparatus with in situ calibration

Surgery – Truss – Pad
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Method of making an electrochemical sensing cell

Adhesive bonding and miscellaneous chemical manufacture – Delaminating processes adapted for specified product – Delaminating in preparation for post processing recycling step
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Profile ID: LFUS-PAI-P-129562

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