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专利名称：Metering pump and valve assembly for use
in the same
发明人：Constantijn Thomas Papaikonomou申请号：US10256117申请日：20020926
公开号：US20040060947A1公开日：20040401
专利附图：
摘要：A metering pump for viscous fluids, such as cosmetics ingredients and paintcolorants, is disclosed which includes a self-sealing valve member at the outlet of thepump to prevent undispensed fluid from solidifying or clogging the outlet and further
which enhances the accuracy of the pump.
申请人：PAPAIKONOMOU CONSTANTIJN THOMAS
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