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发明名称
Improvements in photo-electric door-controlling apparatus and the like
摘要
申请公布号
GB524303(A)
申请公布日期
1940.08.02
申请号
GB19390002738
申请日期
1939.01.26
申请人
THE BRITISH THERMOSTAT COMPANY LIMITED
发明人
分类号
G07C9/00
主分类号
G07C9/00
代理机构
代理人
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地址
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