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经营范围
发明名称
Eraser cleaner
摘要
申请公布号
US2151372(A)
申请公布日期
1939.03.21
申请号
US19360100373
申请日期
1936.09.11
申请人
BRUCE CHARLES E
发明人
BRUCE CHARLES E.
分类号
B43L21/02
主分类号
B43L21/02
代理机构
代理人
主权项
地址
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