SEALING FILTERING DEVICE, STOPPER THEREOF, AND ASSEMBLY FOR CLOSING A BOTTLE CONTAINING A LIQUID
The invention claimed relates to closing filtering devices for a bottle containing a liquid.The essence of the invention claimed is that filtering openings are provided on the side surface of a truncated cone of a lower part of a stopper while in an upper, smaller base of the truncated cone of the l...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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