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发明名称
APPARATUS FOR DRIVING SHAFTS
摘要
申请公布号
PL114205(B2)
申请公布日期
1981.01.31
申请号
PL19770198545
申请日期
1977.05.31
申请人
发明人
分类号
E21D;E21D1/06;(IPC1-7):E21D1/06
主分类号
E21D
代理机构
代理人
主权项
地址
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