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经营范围
发明名称
DEPTH INDICATING DEVICE
摘要
申请公布号
US3533372(A)
申请公布日期
1970.10.13
申请号
USD3533372
申请日期
1967.11.20
申请人
LEO ROSENVOLD
发明人
LEO ROSENVOLD
分类号
A01B63/00;(IPC1-7):G09F9/00
主分类号
A01B63/00
代理机构
代理人
主权项
地址
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