Coffee extraction cup
The coffee extraction cup comprises an outer cup body and an inner cup body arranged in the outer cup body, the inner cup body can slide along the inner wall of the outer cup body, a sealing ring is arranged between the inner cup body and the outer cup body, the two ends of the inner cup body are op...
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Format: | Patent |
Sprache: | chi ; eng |
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Online-Zugang: | Volltext bestellen |
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