4. Wave transmission lines and networks
  5. Plural channel systems
  6. Having branched circuits

Jerzy Hoffman

Inventor

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Core with coils and permanent magnet for switching DC...

Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – With magneto-mechanical motive device
Reexamination Certificate

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Electromagnetic relay

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

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Electromechanical DC-RF relay

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

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Electronic roulette game

Amusement devices: games – Chance devices – Electric or magnetic
Patent

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Electronically controlled switching device

Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Radio frequency switch
Patent

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Profile ID: LFUS-PAI-P-123182

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