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发明名称
Depth gauges
摘要
申请公布号
GB934800(A)
申请公布日期
1963.08.21
申请号
GB19610005671
申请日期
1961.02.15
申请人
NATIONAL RESEARCH DEVELOPMENT CORPORATION
发明人
分类号
G01C13/00
主分类号
G01C13/00
代理机构
代理人
主权项
地址
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