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经营范围
发明名称
PROTECTIVE HELMETS
摘要
申请公布号
GB2251173(A)
申请公布日期
1992.07.01
申请号
GB19910027008
申请日期
1991.12.19
申请人
* COAL INDUSTRY
发明人
GRANVILLE COLLIS * JAMES
分类号
A42B3/16;A42B3/22;A42B3/28;A62B18/04
主分类号
A42B3/16
代理机构
代理人
主权项
地址
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