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US4372319A Low frequency therapeutic instrument 失效
低频治疗仪

Low frequency therapeutic instrument
摘要:
A low frequency therapeutic instrument of the present invention which performs therapies by applying low frequency pulses to a human body can automatically elevate the voltage of low frequency output gradually from a low voltage by detecting contact connections with a patient of an output terminal for applying a low frequency to the patient so as to reduce any shock to the patient at the time of starting the therapy.
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