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发明名称
Perfectionnements aux masques de protection
摘要
申请公布号
FR85801(E)
申请公布日期
1965.10.22
申请号
FR19610883071
申请日期
1961.12.27
申请人
发明人
BONNIN LOUIS ERNEST
分类号
A62B18/08
主分类号
A62B18/08
代理机构
代理人
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