CUMULATIVE CLOSING DEIVICE
A cumulative closing unit has hollow shutter made of elastic material equipped with bottom arranged with symmetrical concavity to side of shutter cavity and ribs that are placed in the cavity and connected to the bottom and the walls of the shutter. In hollow shutter vertical cuts are provided.
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Hauptverfasser: | , , , , , , , , , |
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | A cumulative closing unit has hollow shutter made of elastic material equipped with bottom arranged with symmetrical concavity to side of shutter cavity and ribs that are placed in the cavity and connected to the bottom and the walls of the shutter. In hollow shutter vertical cuts are provided. |
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