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发明名称
Vacuum cleaner bag
摘要
申请公布号
US2225389(A)
申请公布日期
1940.12.17
申请号
US19390259923
申请日期
1939.03.04
申请人
RAGNAR OSTERDAHL
发明人
OSTERDAHL RAGNAR
分类号
A47L9/14
主分类号
A47L9/14
代理机构
代理人
主权项
地址
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