专利名称：Dual chambered fluid displacement
apparatus
发明人：Rod Mitchell Walters,Chih-Chung Chen申请号：US10273045申请日：20021017公开号：US06884231B1公开日：20050426
专利附图：
摘要：A dual-chambered dispensing device having a single piston. The device is drivenby an electric precision motor. Each chamber is capable of aspiration and dispensation.When one chamber is aspirating, the other is dispensing.
申请人：Rod Mitchell Walters,Chih-Chung Chen
地址：Reno NV US,Reno NV US
国籍：US,US
代理人：Bernhard Kreten
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