4. Communications: electrical
  5. Condition responsive indicating system
  6. With particular coupling link

John I. Stahl

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Alarm system having alarm transmitter indentification codes and

Communications: electrical – Condition responsive indicating system – With particular coupling link
Patent

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Communication system

Telephonic communications – Having light wave or ultrasonic link for speech or paging... – Including fiber optic link within telephone network
Patent

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Cordless telephone with internal debit and credit memory

Telephonic communications – Audio message storage – retrieval – or synthesis
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Profile ID: LFUS-PAI-P-435337

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