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经营范围
发明名称
SELFCLOSING ANTI-FIRE SHUTTERS
摘要
申请公布号
GB1512374(A)
申请公布日期
1978.06.01
申请号
GB19740033782
申请日期
1974.07.31
申请人
CONVYRON LTD
发明人
分类号
F16K17/38;(IPC1-7):A62C3/14;F16F1/02
主分类号
F16K17/38
代理机构
代理人
主权项
地址
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