- LandOfFree
- Inventors
- Telephonic communications
- Multi-line or key substation system with selective switching...
- Line status indication or call alerting
Details
Joan H. Coyne
Joan H.
Coyne
- Patent Class
Telephonic communications
- SubClass
Multi-line or key substation system with selective switching...
- SubSubClass
Line status indication or call alerting
- Specialty
Inventor
- Status
active
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Profile ID: LFUS-PAI-P-327458
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