4. Electricity: electrical systems and devices
  5. Control circuits for electromagnetic devices
  6. For relays or solenoids

L. Schroeder

Examiner

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Audio reproduction apparatus

Electrical audio signal processing systems and devices – One-way audio signal program distribution – Public address system
Patent

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Autofocus system for infrared imaging device

Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent

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Class D hearing aid amplifier

Electrical audio signal processing systems and devices – Sound effects – Reverberators
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Clip-on protector

Electricity: electrical systems and devices – Safety and protection of systems and devices – High voltage dissipation
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Conference system for telephony

Patent

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Profile ID: LFUS-PAI-P-706674

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