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专利名称：Liquid level sensor发明人：John T. Hewitt申请号：US11743111申请日：20070501公开号：US07634944B2公开日：20091222
专利附图：
摘要：A liquid level sensor system actuated by a column pressure includes a hollowmember having a distal open end adapted to be positioned into a liquid reservoir to adepth below a liquid surface level, and a sensor head unit. The sensor head unit isresponsive to the column pressure to provide an indication of a liquid level in the
reservoir.
申请人：John T. Hewitt
地址：5492 Bolsa Ave. Huntington Beach CA 929 US
国籍：US
代理人：Larry K. Roberts
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