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发明名称
SCHUTZVORRICHTUNG, INSBESONDERE FUER SCHWEISS- UND SCHNEIDARBEITEN
摘要
申请公布号
DE2550559(B2)
申请公布日期
1978.02.09
申请号
DE19752550559
申请日期
1975.11.11
申请人
发明人
分类号
G02C7/00;A61F9/06;F16P1/06;(IPC1-7):A61F9/06
主分类号
G02C7/00
代理机构
代理人
主权项
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