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发明名称
摘要
申请公布号
FR2405783(B1)
申请公布日期
1983.01.28
申请号
FR19780028553
申请日期
1978.10.05
申请人
WAHLI MARCEL
发明人
分类号
B21D1/12;B21D1/00;B21D3/00;B21D31/06;B24B39/00;C21D7/02;(IPC1-7):B23P9/04
主分类号
B21D1/12
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