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发明名称
Method of and apparatus for making liquid level determinations
摘要
申请公布号
US2565963(A)
申请公布日期
1951.08.28
申请号
US19480000115
申请日期
1948.01.02
申请人
GRAHAM OLLIE W
发明人
GRAHAM OLLIE W.
分类号
G01F23/288
主分类号
G01F23/288
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