4. Electricity: motive power systems
  5. Braking
  6. Automatic and/or with time-delay means

William E. Berkopec

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High resistance grounding systems for oil well electrical...

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

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Method and apparatus for detecting and suppressing a...

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

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Method and circuit for DC motor field regulation with speed feed

Electricity: motive power systems – Braking – Automatic and/or with time-delay means
Patent

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Profile ID: LFUS-PAI-P-252515

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