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经营范围
发明名称
Improvements in or relating to electrically operated indicators
摘要
申请公布号
GB685053(A)
申请公布日期
1952.12.31
申请号
GB19490017231
申请日期
1949.06.29
申请人
NORMALAIR LIMITED;PHILIP JOHN SWAFFIELD
发明人
分类号
B64D45/00
主分类号
B64D45/00
代理机构
代理人
主权项
地址
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