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发明名称
Apparatus for forming tapered tubes
摘要
申请公布号
US1778181(A)
申请公布日期
1930.10.14
申请号
US19240721965
申请日期
1924.06.24
申请人
BRINKMAN LOUIS H
发明人
BRINKMAN LOUIS H.
分类号
B21C37/18
主分类号
B21C37/18
代理机构
代理人
主权项
地址
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