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发明名称
摘要
申请公布号
GB1258816(A)
申请公布日期
1971.12.30
申请号
GBD1258816
申请日期
1969.04.15
申请人
发明人
分类号
A47L9/04;A47L9/24;A47L9/28
主分类号
A47L9/04
代理机构
代理人
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地址
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