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经营范围
发明名称
ROLLER CHART
摘要
申请公布号
CA484800(A)
申请公布日期
1952.07.15
申请号
CAD484800
申请日期
申请人
MELVILLE E. FOSTER
发明人
MELVILLE E. FOSTER
分类号
主分类号
代理机构
代理人
主权项
地址
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