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发明名称
EAR PROTECTORS
摘要
申请公布号
CA558446(A)
申请公布日期
1958.06.10
申请号
CAD558446
申请日期
申请人
WILLIAM B. WADSWORTH;FORREST R. POOLE
发明人
WILLIAM B. WADSWORTH;FORREST R. POOLE
分类号
主分类号
代理机构
代理人
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