Infant drinking cup
An infant drinking cup is described. The infant drinking cup is a first color when at room temperature. When the cup is filled with a cold beverage, the portion of the cup below the fill line changes to a second color. When handled by an infant, those areas below the fill line in contact with the in...
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| Format: | Patent |
| Sprache: | eng |
| Online-Zugang: | Volltext bestellen |
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