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发明名称
PROTECTIVE HEADGEAR
摘要
申请公布号
CA358963(A)
申请公布日期
1936.07.07
申请号
CAD358963
申请日期
申请人
THE MINE SAFETY APPLIANCES COMPANY
发明人
CHARLES W. PUNTON
分类号
主分类号
代理机构
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