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发明名称
Indicating device
摘要
申请公布号
US2609422(A)
申请公布日期
1952.09.02
申请号
US19450604069
申请日期
1945.07.09
申请人
HULSTEDE GEORGE E
发明人
HULSTEDE GEORGE E.
分类号
G01R27/06
主分类号
G01R27/06
代理机构
代理人
主权项
地址
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