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

John Echols

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Keypad

Measuring – testing – or signalling instruments – Security or signal instrument or casing – Alarm or control thereof
Design Patent

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Keypad

Measuring – testing – or signalling instruments – Security or signal instrument or casing – Alarm or control thereof
Design Patent

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Pressure sensitive electric signal generator

Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent

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Profile ID: LFUS-PAI-P-1582999

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