Vacuum bottle with replaceable single-layer middle-section large-head cap

The utility model discloses a single-layer middle-section large-head cap replaceable vacuum bottle which comprises an outer bottle, an inner bottle arranged in the outer bottle, a middle section arranged at a bottle opening of the outer bottle, a piston arranged in the inner bottle and a pump body a...

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Bibliographische Detailangaben
1. Verfasser: FENG DEQUAN
Format: Patent
Sprache:chi ; eng
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