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经营范围
发明名称
Improvements in checking devices for use with gates, doors and the like
摘要
申请公布号
GB601333(A)
申请公布日期
1948.05.04
申请号
GB19450025471
申请日期
1945.10.01
申请人
LEONARD EUGENE COWEY
发明人
分类号
E05F3/10
主分类号
E05F3/10
代理机构
代理人
主权项
地址
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