Invention Grant
US09255571B2 Air pump with two pressure gauges for high/low pressure indication 有权
空气泵带两个压力表,用于高/低压指示

Air pump with two pressure gauges for high/low pressure indication
Abstract:
An air pump includes an air pump body for pumping air, and a high pressure gauge and a low pressure gauge mounted in the air pump body for measuring and indicating the air pumped by the air pump body.
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