4. Telephonic communications
  5. Substation or terminal circuitry
  6. Amplifying

Medford A. Dyer

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Communication device earboom

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Element or attachment
Design Patent

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Communication device earbud

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Element or attachment
Design Patent

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Communication device earset

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Element or attachment
Design Patent

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Hands-free telephone communications cover

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Element or attachment
Design Patent

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Method and system for remote telephone calibration

Telephonic communications – Substation or terminal circuitry – Noise suppression
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2432705

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