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

Gerhart Weiss

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Bi-stable display device

Card – picture – or sign exhibiting – Changing exhibitor – Alphanumeric device
Patent

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Crystal vibrator actuated relay

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

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Timing device

Horology: time measuring systems or devices – Time interval – Gravity actuated type
Patent

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Profile ID: LFUS-PAI-P-230340

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