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经营范围
发明名称
Improvements in or relating to pyrographic apparatus
摘要
申请公布号
GB407326(A)
申请公布日期
1934.03.13
申请号
GB19320025454
申请日期
1932.09.13
申请人
IDEAL PENCIL COMPANY
发明人
分类号
H05B3/02
主分类号
H05B3/02
代理机构
代理人
主权项
地址
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