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发明名称
PERFECTED CENTRALIZED SYSTEM FOR REGULATING WINDOWS FOR VENTILATING FACTORIES
摘要
申请公布号
PT67683(A)
申请公布日期
1978.03.01
申请号
PT19780067683
申请日期
1978.02.21
申请人
SERAL R
发明人
SERAL R
分类号
E06B7/02
主分类号
E06B7/02
代理机构
代理人
主权项
地址
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