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发明名称
Improvements in propeller pencils
摘要
申请公布号
GB369501(A)
申请公布日期
1932.03.24
申请号
GB19310020607
申请日期
1931.07.18
申请人
JOSEPH EGERTON & CO. LIMITED;HARRY MORGAN
发明人
分类号
B43K21/12
主分类号
B43K21/12
代理机构
代理人
主权项
地址
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