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发明名称
Adjustable school desk
摘要
申请公布号
GB657447(A)
申请公布日期
1951.09.19
申请号
GB19490003910
申请日期
1949.02.12
申请人
THORALV SPETALEN;FRODE PETTERSEN
发明人
分类号
A47B41/02
主分类号
A47B41/02
代理机构
代理人
主权项
地址
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