SPONGE HAVING AN OPEN CAVITY
The present invention relates to a sponge (20) including at least one cavity (22), distinct from the pores of the sponge 5 (20), capable of allowing the introduction of a liquid inside the sponge (20) to impregnate the sponge (20), the cavity (22) preferably having a bottom (24) inside the sponge (2...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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