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发明名称
Indicating instrument
摘要
申请公布号
US2288534(A)
申请公布日期
1942.06.30
申请号
US19410418408
申请日期
1941.11.08
申请人
LOWER FREDRICK A
发明人
LOWER FREDRICK A.
分类号
G01B5/08
主分类号
G01B5/08
代理机构
代理人
主权项
地址
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