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发明名称
Welding helmet
摘要
A welding helmet of thermosetting plastic material having an exterior in the form of a mammalian head.
申请公布号
US6178552(B1)
申请公布日期
2001.01.30
申请号
US19970843385
申请日期
1997.04.15
申请人
ROBINSON STEVEN
发明人
ROBINSON STEVEN
分类号
A61F9/06;(IPC1-7):A42B3/18
主分类号
A61F9/06
代理机构
代理人
主权项
地址
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