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发明名称
Противопыльный респиратор
摘要
申请公布号
SU111939(A1)
申请公布日期
1957.11.30
申请号
SU19570569592
申请日期
1957.03.25
申请人
RYSIN S.A.
发明人
RYSIN S.A.
分类号
A62B18/00;A62B23/02
主分类号
A62B18/00
代理机构
代理人
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