4. Electrical audio signal processing systems and devices
  5. One-way audio signal program distribution
  6. Public address system

Winfield J. Brown, Jr.

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Method of fast-forwarding and reversing through digitally stored

Communications: electrical – Continuously variable indicating – With meter reading
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Voice controlled pager and programming techniques therefor

Electrical audio signal processing systems and devices – One-way audio signal program distribution – Public address system
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Profile ID: LFUS-PAI-P-652543

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