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发明名称
摘要
申请公布号
JPH0353047(B2)
申请公布日期
1991.08.13
申请号
JP19860305011
申请日期
1986.12.19
申请人
TOYOKOKI CO
发明人
NAGAKURA SEIJU
分类号
B21D5/02
主分类号
B21D5/02
代理机构
代理人
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