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发明名称
摘要
申请公布号
JPS637851(B2)
申请公布日期
1988.02.18
申请号
JP19800135432
申请日期
1980.09.29
申请人
KOGYO GIJUTSUIN
发明人
SHINOZAKI YOSHITARO;SATO KYOSHI;SHIMIZU TOORU
分类号
B21C23/21;B21C23/04;B21C35/02;B21C35/03;B21J13/14
主分类号
B21C23/21
代理机构
代理人
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