4. Telephonic communications
  5. Audio message storage, retrieval, or synthesis

Richard Lawrence McDowell

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Apparatus and method which saves call related information...

Telephonic communications – Audio message storage – retrieval – or synthesis
Reexamination Certificate

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Caller ID equipment which displays location of caller

Telephonic communications – Reception of calling information at substation in wireline... – Caller location indication
Reexamination Certificate

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Cordless devices and methods for ordering narrow band...

Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate

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Received-signal-strength-based swap table for frequency...

Pulse or digital communications – Spread spectrum – Frequency hopping
Reexamination Certificate

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Systems and methods for completing diagnostic tests on...

Telecommunications – Transmitter and receiver at separate stations – Having measuring – testing – or monitoring of system or part
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Profile ID: LFUS-PAI-P-2104932

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