Circuit for firing paystation coin relay using power derived fro
Coin call telephone apparatus
Coin deflector for a coin telephone receptacle
Coin operated telephone auditor
Coin operated telephone auditor
Coin release mechanism of pay phone
Coin release mechanism of payphone
Coin return chute for telephone pay station
Coin slot structure for coin call telephone apparatus
Coin validation method and apparatus for a coin telephone or sim
Coin-operated telephone apparatus
Coin-operated telephone apparatus
Communicating apparatus providing discriminated voice and/or ima