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发明名称
Perfectionnement aux dispositifs filtrants pour masques à gaz et masques munis de ce dispositif
摘要
申请公布号
FR785976(A)
申请公布日期
1935.08.23
申请号
FRD785976
申请日期
1935.02.20
申请人
发明人
MARTIN CHARLES;GOUFFAULT ROBERT
分类号
A62B23/00
主分类号
A62B23/00
代理机构
代理人
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