U.S. federal trademark · Serial No. 72277727 · Reg. No. 0859980
ELECTRONIC DISTRIBUTION SYSTEMS-NAMELY, CENTRAL OFFICE AND SUBSCRIBER CARRIER UNITS FOR A TELEPHONE SYSTEM, FOR CONNECTION TO AN EXISTING CABLE PAIR, BOTH AT THE CENTRAL OFFICE AND AT THE SUBSCRIBER'S LOCATION SO THAT AN ADDITIONAL CIRCUIT AND AN ADDITIONAL TELEPHONE SET CAN BE SUPPLIED AT THE SUBSCRIBER'S LOCATION
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