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CN108718512A
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A kind of high efficiency and heat radiation frequency-conversion control cabinet
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Large torque energy-saving motor
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Touch delayed lamp switch
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Exhaust fan speed regulator
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Overvoltage and undervoltage protective device for power supply voltage
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Electronic-mode flashing circuit of steering lamp of motor vehicle
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Fax machine adapter special for mobile phone
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15V direct current booster device of pointer multimeter
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Ultrasonic mosquito dispelling device
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Direct current (DC) boosted circuit made from time base circuit
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Identification device for homonymous terminals and heteronymous terminals of windings of high-frequency and low-frequency transformers
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Electronic timing hypnosis apparatus
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Desk lamp capable of controlling brightness automatically
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Discrete component type frequency modulated wireless microphone
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Solid-state AC (Alternating Current) replay
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Switching power supply without supply transformer
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Integrated circuit ding-dong doorbell
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Overlong timer for 555 time base circuit
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Hearing aid made from monolithic integrated circuit
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Light control desk lamp
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