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发明名称
Improvements in propeller pencils
摘要
申请公布号
GB331655(A)
申请公布日期
1930.07.10
申请号
GB19290016322
申请日期
1929.05.27
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
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地址
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