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发明名称
FOLDABLE PLAY PEN
摘要
申请公布号
CA669296(A)
申请公布日期
1963.08.27
申请号
CAD669296
申请日期
申请人
HAMILTON COSCO
发明人
EARL F. HAMILTON
分类号
主分类号
代理机构
代理人
主权项
地址
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