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发明名称
Confined extrusion method of making hollow articles
摘要
申请公布号
US3078566(A)
申请公布日期
1963.02.26
申请号
US19570656246
申请日期
1957.05.01
申请人
THE COLD FORMING MANUFACTURING COMPANY
发明人
EGAN FRANCIS J.
分类号
B21K21/00
主分类号
B21K21/00
代理机构
代理人
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地址
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