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发明名称
SHEET BLANK FOR DRAWING CYLINDRICAL PART WITH TWO LONGITUDINAL SLOTS
摘要
申请公布号
SU1569057(A1)
申请公布日期
1990.06.07
申请号
SU19884451945
申请日期
1988.05.23
申请人
KROILIN DAVID A,SU
发明人
KROILIN DAVID A,SU
分类号
B21D22/30
主分类号
B21D22/30
代理机构
代理人
主权项
地址
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