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发明名称
Liquid level signaling device
摘要
申请公布号
US2907994(A)
申请公布日期
1959.10.06
申请号
US19560631814
申请日期
1956.12.31
申请人
HARKE RAYMOND J
发明人
HARKE RAYMOND J.
分类号
G01F23/70
主分类号
G01F23/70
代理机构
代理人
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地址
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