4. Communications: electrical
  5. Land vehicle alarms or indicators
  6. Internal alarm or indicator responsive to a condition of the...

Jan P. Plummer

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Device for remote control of stereo hi-fi amplifier parameters

Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent

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Speaker system

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer
Patent

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System and method to enhance reproduction of sub-bass...

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Having acoustic wave modifying structure
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1846096

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