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发明名称
Perfectionnements aux appareils de protection contre les poussières fumées, vapeurs et gaz nocifs
摘要
申请公布号
FR799098(A)
申请公布日期
1936.06.05
申请号
FRD799098
申请日期
1935.03.01
申请人
发明人
POELMAN ARMAND, JACQUES, JULIEN
分类号
A62B23/00
主分类号
A62B23/00
代理机构
代理人
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地址
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