Certificate of Patent [SIMULTANEOUS INTERPRETATION SYSTEM FOR BIDIRECTIONAL AUDIO DATA COMMUNICATION BASED ON BINARY CDMA]
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Certificate of Patent [SYSTEM FOR TRANSMITTING, RECEIVING MULTI VOICE USING ISM BAND FREQUENCY AND METHOD THEREFOR]
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Certificate of Patent [SUB BATTERY PACK SYSTEM FOR PROVIDING BINARY CDMA STYLE OF LOCAL WIRELESS COMMUNICATION LINKING SMART PHONE AND METHOD OPERATION THEREFOR]
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Certificate of Patent [EMERGENCY CALLING AND MULTIUSER TELEPHONY CALL SYSTEM FOR SOLITUDE AGED AND CRIPPLE]
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TELEC CERTIFICATES
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Awarded as GYEONG-BUK Province PRIDE product
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