4. Telephonic communications
  5. With check operated control
  6. Fraud or interference prevention

Robert Riddle

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Paint composition

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent

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Tamperproof pay telephone

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

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Profile ID: LFUS-PAI-P-431755

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