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经营范围
发明名称
Improvements in or relating to propeller pencils
摘要
申请公布号
GB434987(A)
申请公布日期
1935.09.12
申请号
GB19340018697
申请日期
1934.06.25
申请人
FREDERICK CHARLES BINA;FRANCIS FREDERICK BARREY
发明人
分类号
B43K21/08
主分类号
B43K21/08
代理机构
代理人
主权项
地址
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