4. Telephonic communications
  5. With check operated control
  6. Fraud or interference prevention
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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 return anti-stuffing apparatus and method

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

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Coin return mechanism protecter

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

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Coin telephone box with anti-stuffing coin return chute

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

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Coin telephone data port protection

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

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Coin tone validator for telephone paystations

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

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Country to domestic call intercept process (CIP)

Telephonic communications – With check operated control – Fraud or interference prevention
Reexamination Certificate

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