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发明名称
Manufacture of tubing
摘要
申请公布号
US2375661(A)
申请公布日期
1945.05.08
申请号
US19420430355
申请日期
1942.02.11
申请人
JOHN KARMAZIN
发明人
KARMAZIN JOHN
分类号
B21C37/12
主分类号
B21C37/12
代理机构
代理人
主权项
地址
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