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Portable two-way intercom device e.g. for household, uses conventional intercom device fitted with transmitter
Portable two-way intercom device e.g. for household, uses conventional intercom device fitted with transmitter
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机译:便携式双向对讲设备,例如家用,使用配有对讲机的常规对讲设备
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摘要
A portable two-way intercom device consisting of a mobile electronic part and the conventional two-way intercom. The conventional intercom is fitted with a transmitter which relays the functions to the portable part.
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