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发明名称
摘要
申请公布号
DE1652765(B2)
申请公布日期
1970.09.17
申请号
DE19681652765
申请日期
1968.01.29
申请人
发明人
分类号
B21C37/08;B26D1/60;B26D3/16;B29C53/50
主分类号
B21C37/08
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代理人
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