4. Electricity: electrical systems and devices
  5. Safety and protection of systems and devices
  6. Ground fault protection

Yoshihisa Ishigami

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Current detecting apparatus

Electricity: electrical systems and devices – Safety and protection of systems and devices – Ground fault protection
Patent

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Ground fault interrupter

Electricity: electrical systems and devices – Safety and protection of systems and devices – Ground fault protection
Reexamination Certificate

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Illumination sensor with spectral sensitivity corresponding...

Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Reexamination Certificate

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Profile ID: LFUS-PAI-P-95974

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