4. Telephonic communications
  5. With check operated control
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Call blocking based on call properties

Telephonic communications – With check operated control – Other than coin
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Call setup for prepaid services

Telephonic communications – With check operated control – Other than coin
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Card pay telephone with speed dialing

Telephonic communications – With check operated control – Other than coin
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Card-operated telephone

Telephonic communications – With check operated control – Other than coin
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Charge minimizing callback system

Telephonic communications – With check operated control
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Circuit for firing paystation coin relay using power derived fro

Telephonic communications – With check operated control – Coin signalling or control
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Coin blocker

Telephonic communications – With check operated control – At terminal station
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Coin call telephone apparatus

Telephonic communications – With check operated control – Coin signalling or control
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Coin charging system for mobile telephony

Telephonic communications – With check operated control – At terminal station
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Coin deflector for a coin telephone receptacle

Telephonic communications – With check operated control – Coin signalling or control
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Coin escrow apparatus with relay switch contact simulator

Telephonic communications – With check operated control
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Coin fraud preventing unit and modular configurations for pay te

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

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Coin fraud preventing unit and modular configurations for pay te

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

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Coin fraud prevention system for coin telephones

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

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Coin fraud prevention unit and modular configurations for pay te

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

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Coin operated telephone auditor

Telephonic communications – With check operated control – Coin signalling or control
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Coin operated telephone auditor

Telephonic communications – With check operated control – Coin signalling or control
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Coin operated telephone auditor

Telephonic communications – With check operated control
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Coin relay drive and switching circuit for paystation telephone

Telephonic communications – With check operated control – At terminal station
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Coin release mechanism of pay phone

Telephonic communications – With check operated control – Coin signalling or control
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0
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