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经营范围
发明名称
Vacuum cleaner
摘要
申请公布号
US2745512(A)
申请公布日期
1956.05.15
申请号
US19530373542
申请日期
1953.08.11
申请人
OSBORN RALPH C
发明人
OSBORN RALPH C.
分类号
A47L5/36
主分类号
A47L5/36
代理机构
代理人
主权项
地址
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