4. Electrical generator or motor structure
  5. Non-dynamoelectric
  6. Piezoelectric elements and devices

Ursula Ruth Lenel

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Camera lens positioning using a electro-active device

Photography – Having variable focal length of camera objective – Having focus operation
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Electro active devices

Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
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Loudspeaker using an electro-active device

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Electrostrictive – magnetostrictive – or piezoelectric
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Sensor using electro active curved helix and double helix

Measuring and testing – Dynamometers – Responsive to force
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Profile ID: LFUS-PAI-P-2742477

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