An Improved Sucking-bottle for Children
3610. Berberich, W. A. Feb. 14. Feeding-bottles.-The body of the bottle is formed with an external groove a' and notch a , and near the notch with a perforation C, which is normally closed by a rubber band mounted in the groove. By raising the band, the external and internal pressures can be eq...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | 3610. Berberich, W. A. Feb. 14. Feeding-bottles.-The body of the bottle is formed with an external groove a' and notch a , and near the notch with a perforation C, which is normally closed by a rubber band mounted in the groove. By raising the band, the external and internal pressures can be equalized without removing the nipple. |
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