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发明名称
Guiding channel-shaped bodies
摘要
申请公布号
US2840210(A)
申请公布日期
1958.06.24
申请号
US19570653163
申请日期
1957.04.16
申请人
LORENTZEN HARDWARE MFG. CORP.
发明人
LORENTZEN HANS K.
分类号
B21D28/24
主分类号
B21D28/24
代理机构
代理人
主权项
地址
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