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发明名称
DUST SHIELDING APPARATUS
摘要
An apparatus comprising at least one sound aperture configured to be acoustically coupled to an air displacement component, wherein the at least one sound aperture configured to produce a magnetically shielded region to form a trap for particles.
申请公布号
US2014334649(A1)
申请公布日期
2014.11.13
申请号
US201114128826
申请日期
2011.07.01
申请人
Fromel Andreas;Kuivalainen Jani
发明人
Fromel Andreas;Kuivalainen Jani
分类号
H04R1/02;H04R1/12
主分类号
H04R1/02
代理机构
代理人
主权项
地址
Kirchseeon DE
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