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T1 channel bank control and apparatus

Telephonic communications – Subscriber line or transmission line interface
Patent

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T1 channel bank control process and apparatus

Telephonic communications – Subscriber line or transmission line interface
Patent

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T1 channel bank control process and apparatus

Telephonic communications – Call signal generating
Patent

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T1 channel bank control process and apparatus

Telephonic communications – Subscriber line or transmission line interface
Patent

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T1 channel bank control process and apparatus

Telephonic communications – Subscriber line or transmission line interface
Patent

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T1 channel bank control process and apparatus

Telephonic communications – Subscriber line or transmission line interface – Network interface device
Patent

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TAD incorporated with VCR

Telephonic communications – Audio message storage – retrieval – or synthesis – Dynamic audio signal recording or reproduction
Patent

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Tag interrogator and microphone array for identifying a...

Telephonic communications – Special services – Conferencing
Reexamination Certificate

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Talkie connection apparatus and method for use in a switched net

Telephonic communications – Audio message storage – retrieval – or synthesis – Interacting voice message systems
Patent

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Talking bouquet

Telephonic communications – Audio message storage – retrieval – or synthesis – Message management
Patent

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Tamper-deterrent device

Telephonic communications – With check operated control – Fraud or interference prevention
Patent

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Tamperproof pay telephone

Telephonic communications – With check operated control – Fraud or interference prevention
Patent

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Tandem access control processor connected to the public...

Telephonic communications – Plural exchange network or interconnection – Tandem switching center
Reexamination Certificate

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Target area calling system

Telephonic communications – Telephone line or system combined with diverse electrical... – Polling
Patent

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Targeted advertising in a telephone dialing system

Telephonic communications – With usage measurement – Call charge metering or monitoring
Reexamination Certificate

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Targeted and intelligent multimedia conference establishment...

Telephonic communications – Special services – Conferencing
Reexamination Certificate

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Targeted disaster warning system and apparatus

Telephonic communications – Emergency or alarm communications – Announcement or alarm received at terminal station
Reexamination Certificate

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Targeted disaster warning system and method

Telephonic communications – Emergency or alarm communications – Announcement or alarm received at terminal station
Reexamination Certificate

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Targeted disaster warning system and method

Telephonic communications – Emergency or alarm communications – Announcement or alarm received at terminal station
Reissue Patent

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TDMA mobile ad-hoc network (MANET) with second order timing...

Telephonic communications – Supervisory or control line signaling
Reexamination Certificate

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