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笔
摘要
左视图与右视图对称,故省略左视图。省略仰视图。
申请公布号
CN3361864D
申请公布日期
2004.04.07
申请号
CN03340236.1
申请日期
2003.02.26
申请人
伯罗尔公司
发明人
C·E·贝恩
分类号
19-06
主分类号
19-06
代理机构
中国专利代理(香港)有限公司
代理人
郑建晖
主权项
地址
美国伊利诺伊州
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