4. Electrical audio signal processing systems and devices
  5. Electro-acoustic audio transducer
  6. Plural or compound reproducers

Edward H. Haase

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Flush mount duplex-pivoting speaker unit

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Speaker or housing therefor
Patent

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Flush-mount pivoting speaker

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Mounting or support feature of housed loudspeaker
Patent

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Panel mount speaker support system

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Plural or compound reproducers
Patent

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Screw-in LED light and sound bulb

Communications: electrical – Systems – Plural
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1275808

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