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发明名称
HEAD-PROTECTING SHELLS AND LIKE ARTICLES
摘要
申请公布号
CA646521(A)
申请公布日期
1962.08.14
申请号
CAD646521
申请日期
申请人
JEAN P. CROUZET
发明人
JEAN P. CROUZET
分类号
主分类号
代理机构
代理人
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