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发明名称
摘要
申请公布号	DE2056958(A1)	申请公布日期	1972.05.25
申请号	DE19702056958	申请日期	1970.11.19
申请人	GEN ENGINEERING COMPANY LTD	发明人
分类号	B21F99/00;B65H54/71;(IPC1-7):B23D15/00	主分类号	B21F99/00
代理机构		代理人
主权项
地址

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