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经营范围
发明名称
WATER LEVEL DEVICE
摘要
申请公布号
AU7181781(A)
申请公布日期
1981.12.17
申请号
AU19810071817
申请日期
1980.06.12
申请人
BELL, W.A.
发明人
W.A. BELL
分类号
G01C9/22
主分类号
G01C9/22
代理机构
代理人
主权项
地址
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