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经营范围
发明名称
Improvements in or relating to electric arc projectors
摘要
申请公布号
GB357695(A)
申请公布日期
1931.10.01
申请号
GB19300022377
申请日期
1930.07.24
申请人
CHARLES H. CHAMPION & COMPANY LIMITED;CHARLES HAROLD CHAMPION
发明人
分类号
H05B31/00
主分类号
H05B31/00
代理机构
代理人
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地址
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