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

Thomas James Rollins

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Communication system

Communications: electrical – Tactual indication
Reexamination Certificate

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Damped resonant piezoelectric alerting device

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

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Manually operable electronic apparatus

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

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Resonant piezoelectric alerting device

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

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Profile ID: LFUS-PAI-P-1711843

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