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发明名称
LOOSE LEAF BINDER
摘要
申请公布号
CA461686(A)
申请公布日期
1949.12.13
申请号
CAD461686
申请日期
申请人
ERNEST J. BLOORE
发明人
ERNEST J. BLOORE
分类号
主分类号
代理机构
代理人
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