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经营范围
发明名称
A SLEEPING AID
摘要
申请公布号
GB8829861(D0)
申请公布日期
1989.02.15
申请号
GB19880029861
申请日期
1988.12.21
申请人
PORTA PRODUCTS LIMITED
发明人
分类号
A61F5/01;A61F5/56
主分类号
A61F5/01
代理机构
代理人
主权项
地址
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