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发明名称
Schutzblende fuer Schweisser
摘要
申请公布号
DE533714(C)
申请公布日期
1931.09.19
申请号
DED533714D
申请日期
申请人
KARL ROTH
发明人
分类号
A61F9/06
主分类号
A61F9/06
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