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经营范围
发明名称
Pencil pointer and cleaner
摘要
申请公布号
US1841208(A)
申请公布日期
1932.01.12
申请号
US19300495704
申请日期
1930.11.14
申请人
PHILIP RETZ
发明人
RETZ PHILIP
分类号
B43L23/00
主分类号
B43L23/00
代理机构
代理人
主权项
地址
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