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发明名称
摘要
申请公布号
JPS5120421(B2)
申请公布日期
1976.06.24
申请号
JP19730036337
申请日期
1973.03.29
申请人
发明人
分类号
B21D19/00;B23K9/00;B23K9/028
主分类号
B21D19/00
代理机构
代理人
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地址
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