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发明名称
Device for securing telescoping tubes to each other
摘要
申请公布号
US2526415(A)
申请公布日期
1950.10.17
申请号
US19470762042
申请日期
1947.07.19
申请人
ANFINN REFSDAL
发明人
REFSDAL ANFINN
分类号
A63C11/22;F16B7/14
主分类号
A63C11/22
代理机构
代理人
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