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经营范围
发明名称
Tension indicator
摘要
申请公布号
US1838299(A)
申请公布日期
1931.12.29
申请号
US19290393648
申请日期
1929.09.19
申请人
BROWN COMPANY
发明人
COOK ERNEST P.
分类号
G01N3/06
主分类号
G01N3/06
代理机构
代理人
主权项
地址
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