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发明名称
Eraser holder
摘要
申请公布号
US1942283(A)
申请公布日期
1934.01.02
申请号
US19330669262
申请日期
1933.05.03
申请人
HALE FRANK M
发明人
HALE FRANK M.
分类号
B43K29/02;B43L19/00
主分类号
B43K29/02
代理机构
代理人
主权项
地址
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