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发明名称
Indicating apparatus
摘要
申请公布号
US2242945(A)
申请公布日期
1941.05.20
申请号
US19390277479
申请日期
1939.06.05
申请人
EDWARDS ALBERT Y
发明人
EDWARDS ALBERT Y.
分类号
G01F9/02
主分类号
G01F9/02
代理机构
代理人
主权项
地址
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