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CN110198497A
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A kind of digital walkie-talkie and its communication means of common-frequency time division duplex
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CN108279427A
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A kind of multistage positioning system and its localization method for intercom
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CN108233482A
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It is a kind of to be used to detect battery capacity, the Talkabout charger to battery pack charge balancing
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CN108271000A
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A kind of intercom for the monitoring device that can transmit audio and video
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CN108270460A
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A kind of talkback system and its self checking method for being capable of simply rapid self-test quality
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CN108282185A
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A kind of control circuit for transmitting intercommunication machine information by charger seat
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CN108270461A
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It is a kind of to position the nurse intercom that can receive broadcasting station
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CN108173567A
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The frequency modulation system and its frequency modulation method of a kind of multiband interphone
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CN108199740A
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A kind of security protection intercom with unlocked by fingerprint function
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CN108183529A
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The intercom lithium battery and its equalization methods of a kind of fast uniform
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CN108230572A
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A kind of interphone communication system for sharing
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CN109429189A
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Using the trunked communication system and cluster communication method of single base station multichannel cluster communication agreement
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CN109219034A
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A method of roaming trunk desk and its realization roaming
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