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发明名称
摘要
申请公布号
DE2738238(C2)
申请公布日期
1988.07.21
申请号
DE19772738238
申请日期
1977.08.25
申请人
GROTNES MACHINE WORKS INC., CHICAGO, ILL., US
发明人
FENCL, VERNON R., NORTHBROOK, ILL., US;TAN, AUJIT, CHICAGO, ILL., US
分类号
B21C37/08;B23K9/025;B23K11/02;B23K11/087;(IPC1-7):B23K11/02
主分类号
B21C37/08
代理机构
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