4. Telephonic communications
  5. Emergency or alarm communications
  6. Central office responsive to emergency call or alarm

William J. Tsumpes

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Automated parallel and redundant subscriber contact and...

Telephonic communications – Emergency or alarm communications – Central office responsive to emergency call or alarm
Reexamination Certificate

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Automated parallel and redundant subscriber contact and...

Telephonic communications – Emergency or alarm communications – Central office responsive to emergency call or alarm
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Automated parallel and redundant subscriber contact and...

Telephonic communications – Emergency or alarm communications – Central office responsive to emergency call or alarm
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

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