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发明名称
NOZZLE PUNCHING METHOD
摘要
申请公布号
JPS58221621(A)
申请公布日期
1983.12.23
申请号
JP19820104105
申请日期
1982.06.16
申请人
SUMITOMO KINZOKU KOGYO KK
发明人
KOJIMA MASAYASU
分类号
B21C37/29;B21D19/08
主分类号
B21C37/29
代理机构
代理人
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地址
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