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发明名称
Stopper rod assembly and parts
摘要
申请公布号
US2248941(A)
申请公布日期
1941.07.15
申请号
US19410377334
申请日期
1941.02.04
申请人
JOHN BIDNER;SCHOFIELD WILLIAM W
发明人
BIDNER JOHN;SCHOFIELD WILLIAM W.
分类号
B22D41/18
主分类号
B22D41/18
代理机构
代理人
主权项
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