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经营范围
发明名称
Pencil
摘要
申请公布号
US3408147(A)
申请公布日期
1968.10.29
申请号
US19670659267
申请日期
1967.07.11
申请人
KEITH T. BLEUER
发明人
BLEUER KEITH T.
分类号
B43K21/20
主分类号
B43K21/20
代理机构
代理人
主权项
地址
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