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经营范围
发明名称
Magnetic eraser and brush
摘要
申请公布号
US3039435(A)
申请公布日期
1962.06.19
申请号
US19590799165
申请日期
1959.03.13
申请人
WALTER MEYER
发明人
MEYER WALTER
分类号
B43L19/00
主分类号
B43L19/00
代理机构
代理人
主权项
地址
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