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经营范围
发明名称
CAVITY-WALL VENTILATORS
摘要
申请公布号
GB8510238(D0)
申请公布日期
1985.05.30
申请号
GB19850010238
申请日期
1985.04.20
申请人
CATNIC COMPONENTS LTD
发明人
分类号
E04B1/70
主分类号
E04B1/70
代理机构
代理人
主权项
地址
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