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发明名称
Expansible and contractible mandrel
摘要
申请公布号
US3327961(A)
申请公布日期
1967.06.27
申请号
US19650459767
申请日期
1965.05.28
申请人
REPPER JR THEODORE
发明人
JR. THEODORE REPPER,
分类号
B21C47/30
主分类号
B21C47/30
代理机构
代理人
主权项
地址
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