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发明名称
Method of cutting
摘要
申请公布号
US2827406(A)
申请公布日期
1958.03.18
申请号
US19560627824
申请日期
1956.12.12
申请人
KOPPERS COMPANY, INC.
发明人
EASTON RUFUS
分类号
B23K7/00
主分类号
B23K7/00
代理机构
代理人
主权项
地址
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