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发明名称
Ring rolling machine
摘要
申请公布号
US3048202(A)
申请公布日期
1962.08.07
申请号
US19580775863
申请日期
1958.11.24
申请人
WEDGE PROTECTORS, INC.
发明人
HILLIX FOSTER F.
分类号
B21D53/16
主分类号
B21D53/16
代理机构
代理人
主权项
地址
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