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发明名称
Indicator holder
摘要
申请公布号
US2354046(A)
申请公布日期
1944.07.18
申请号
US19430478317
申请日期
1943.03.06
申请人
OSLUND JOHN E
发明人
OSLUND JOHN E.
分类号
G01B5/00
主分类号
G01B5/00
代理机构
代理人
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