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发明名称
METHOD OF FORMING THIN-WALLED METAL TUBING
摘要
申请公布号
CA636960(A)
申请公布日期
1962.02.20
申请号
CAD636960
申请日期
申请人
CALUMET AND HECLA
发明人
HOWARD A. FROMSON
分类号
主分类号
代理机构
代理人
主权项
地址
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