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发明名称
MANUFACTURE OF METAL RINGS
摘要
申请公布号
GB1548860(A)
申请公布日期
1979.07.18
申请号
GB19770026989
申请日期
1977.06.28
申请人
GENERAL ELECTRIC CO
发明人
分类号
B21H1/06;(IPC1-7):B21H1/06
主分类号
B21H1/06
代理机构
代理人
主权项
地址
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