4. Telephonic communications
  5. With check operated control
  6. Coin signalling or control

Karlin Telecomm Corporation

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Coin release mechanism of pay phone

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

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Coin return chute structure of payphone

Deposit and collection receptacles – Closures and chutes – Coin trap
Patent

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Reinforced pay phone casing structure

Telephonic communications – Terminal accessory or auxiliary equipment – Hood or enclosure
Patent

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Profile ID: LFUS-PAI-P-54767

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