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发明名称
Wrench rack
摘要
申请公布号
US1862447(A)
申请公布日期
1932.06.07
申请号
US19310571211
申请日期
1931.10.26
申请人
WHITTAKER JOHN E
发明人
WHITTAKER JOHN E.
分类号
E21B15/00
主分类号
E21B15/00
代理机构
代理人
主权项
地址
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