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发明名称
Chain joint
摘要
申请公布号
US2541157(A)
申请公布日期
1951.02.13
申请号
US19470728811
申请日期
1947.02.15
申请人
FULKE FRANK L
发明人
FULKE FRANK L.
分类号
E21C25/36;F16G13/07
主分类号
E21C25/36
代理机构
代理人
主权项
地址
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