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发明名称
MANUFACTURE OF STEEL SHEET HAVING PROJECTION
摘要
申请公布号
JPS6434501(A)
申请公布日期
1989.02.06
申请号
JP19870190972
申请日期
1987.07.30
申请人
SUMITOMO METAL IND LTD
发明人
KUSABA YOSHIAKI
分类号
B21B1/22
主分类号
B21B1/22
代理机构
代理人
主权项
地址
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