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经营范围
发明名称
WALL CONNECTING DEVICE
摘要
申请公布号
GB8920538(D0)
申请公布日期
1989.10.25
申请号
GB19890020538
申请日期
1989.09.11
申请人
EDWARDS, JOHN
发明人
分类号
E04B1/41
主分类号
E04B1/41
代理机构
代理人
主权项
地址
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