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ActiveCN110782558AImprove adaptabilityMeet basic car lock needsKey distribution for secure communicationParticular environment based servicesAutomotive engineeringDifferential GPS
InactiveCN101217309AGuaranteed diversity gainLittle impact on performanceError prevention/detection by using return channelRadio transmission for post communicationCarrier signalSubcarrier
ActiveCN105651457AThe algorithm is simple and reliableThe result is accurate and effectiveGenetic modelsForce/torque/work measurement apparatus calibration/testingGlobal optimumVoltage
ActiveCN111935796AImprove strength and qualityImprove anti-interference abilitySubstation speech amplifiersDevices with wireless LAN interfaceHeadsetInterference resistance
ActiveCN107228452AWorks wellGood cooling capacitySpace heating and ventilation safety systemsSpace heating and ventilation control systemsTerminal voltageElectricity
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
InactiveCN108088255AFurnace structure is simple and lightShorten the heat conduction pathCharge treatment typeFurnace cooling arrangementsBearing surfaceMetallurgy