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发明名称
Method of forming screw strip
摘要
申请公布号
US3284825(A)
申请公布日期
1966.11.15
申请号
US19660530132
申请日期
1966.02.25
申请人
BRAUCHLA HERBERT C
发明人
BRAUCHLA HERBERT C.
分类号
B21K1/44;B21K1/56;B23G7/00
主分类号
B21K1/44
代理机构
代理人
主权项
地址
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