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发明名称
Dust filter bag
摘要
A dust filter bag is in the shape of a flat bag for a vacuum cleaner, which is formed from a first layer and a second layer made of a weldable material. The layers are welded together circumferentially along the circumference thereof.
申请公布号
US8097054(B2)
申请公布日期
2012.01.17
申请号
US20070299069
申请日期
2007.05.11
申请人
SCHULTINK JAN;SAUER RALF;EUROFILTERS N. V.
发明人
SCHULTINK JAN;SAUER RALF
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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