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Three-phase high-current switchgear apparatus with twinned...

Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Automatic circuit-interrupting devices
Reexamination Certificate

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Three-position actuating mechanism for transfer switch

Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Multiple contact type
Patent

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Three-stage liquid metal switch

Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Utilizing conductive liquid
Reexamination Certificate

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Tie bar for three pole switching device

Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Automatic circuit-interrupting devices
Reexamination Certificate

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Time delay relay movement

Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Retarded or delayed type
Patent

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Time delay switch

Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Retarded or delayed type
Patent

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Timer controlled electromagnetic tripping apparatus for simultan

Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Tripping means
Patent

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Timing device utilizing a unique clutch assembly

Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – With motor
Patent

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Tool free contact block

Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Contact composition or structure
Reexamination Certificate

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Toroidal magnet system

Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Retarded or delayed type
Patent

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Torque motor

Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Polarity-responsive
Reexamination Certificate

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Torque motor

Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Polarity-responsive
Reexamination Certificate

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Torque motor

Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Polarity-responsive
Reexamination Certificate

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Torsion spring for contact pressure

Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Automatic circuit-interrupting devices
Patent

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Torsion spring for electro-mechanical switches and a...

Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Polarity-responsive
Reexamination Certificate

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Torsion spring for electro-mechanical switches and a...

Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Polarity-responsive
Reexamination Certificate

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Torsion spring for electro-mechanical switches and a...

Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Polarity-responsive
Reexamination Certificate

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Transfer switch including a circuit breaker housing

Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Automatic circuit-interrupting devices
Reexamination Certificate

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Transfer switch including a circuit breaker housing

Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Automatic circuit-interrupting devices
Reexamination Certificate

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Transfer-type electromagnetic relay comprising a coil around a h

Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Polarity-responsive
Patent

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