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发明名称
SELF-LOADING PENCIL
摘要
申请公布号
CA427763(A)
申请公布日期
1945.05.29
申请号
CAD427763
申请日期
申请人
CHARLES ROY
发明人
CHARLES ROY
分类号
主分类号
代理机构
代理人
主权项
地址
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