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经营范围
发明名称
Combined helmet shield and visor
摘要
申请公布号
USD254638(S1)
申请公布日期
1980.04.08
申请号
US05/785405
申请日期
1977.04.07
申请人
发明人
分类号
主分类号
代理机构
代理人
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地址
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