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发明名称
METHOD OF FORMING SHEET SPRING MATERIAL AND SHEET SPRING MATERIAL
摘要
申请公布号
JPS5439366(A)
申请公布日期
1979.03.26
申请号
JP19770106066
申请日期
1977.09.02
申请人
SUMITOMO METAL IND
发明人
YAMASHITA KATSUNORI
分类号
B21D1/02;B21B15/00;B21B39/14;B21D19/00;B21D19/04
主分类号
B21D1/02
代理机构
代理人
主权项
地址
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