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发明名称
LEVEL INDICATING DEVICES
摘要
申请公布号
GB8429773(D0)
申请公布日期
1985.01.03
申请号
GB19840029773
申请日期
1984.11.26
申请人
PETCH, J
发明人
分类号
G01C9/12
主分类号
G01C9/12
代理机构
代理人
主权项
地址
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