4. Electricity: circuit makers and breakers
  5. Retarded
  6. Chain or flexible drive

W. Porter Stone

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Piezoelectric circuit breaker

Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific current responsive fault sensor
Patent

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Self-calibrating thermometer

Thermal measuring and testing – Thermal calibration system
Patent

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Visco-elastic delayed actuator

Electricity: circuit makers and breakers – Retarded – Chain or flexible drive
Patent

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Profile ID: LFUS-PAI-P-1509053

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