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经营范围
发明名称
SAFETY HELMET
摘要
申请公布号
CA32496(S)
申请公布日期
1970.05.19
申请号
CANDAT0032496F
申请日期
申请人
ANDREW S. FRASER;MALCOLM D. SINCLAIR
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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