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发明名称
Improvements in or relating to flush or counter-sunk riveting
摘要
申请公布号
GB483663(A)
申请公布日期
1938.04.22
申请号
GB19360028781
申请日期
1936.10.22
申请人
EMIL BECKER
发明人
分类号
B21J15/02
主分类号
B21J15/02
代理机构
代理人
主权项
地址
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