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经营范围
发明名称
BROCA ANULAR
摘要
申请公布号
BR8103193(A)
申请公布日期
1982.08.24
申请号
BR19810003193
申请日期
1981.05.22
申请人
HOUGEN EVERETT DOUGLAS
发明人
HOUGEN EVERETT DOUGLAS
分类号
B23B51/04;(IPC1-7):B23B51/02
主分类号
B23B51/04
代理机构
代理人
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地址
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