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发明名称
Apparatus responsive to variations in the differential between the levels of two liquid bodies
摘要
申请公布号
US2802363(A)
申请公布日期
1957.08.13
申请号
US19510252057
申请日期
1951.10.19
申请人
ETABLISSEMENTS NEYRPIC
发明人
PONSAR YVES
分类号
G01F23/30;G05D9/02
主分类号
G01F23/30
代理机构
代理人
主权项
地址
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