Heat insulation cup

A heat insulation cup comprises a cup cover, an accommodating cavity and a cup body. The cup cover is provided with upper inner screwed threads and lower inner screwed threads inside, the accommodating cavity is provided with accommodating cavity outer screwed threads, the cup body is provided with...

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Bibliographische Detailangaben
1. Verfasser: CHEN SHIDE
Format: Patent
Sprache:eng
Schlagworte:
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