CYCLONIC SURFACE CLEANING APPARATUS WITH SEQUENTIAL FILTRATION MEMBERS
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United States of America Patent
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app pub date -
Aug 27, 2008
filing date -
Aug 29, 2007
priority date (Note) -
Abandoned
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Abstract
A cyclonic surface cleaning apparatus incorporates a series of sequential physical filtration members to progressively remove smaller particulate matter whereby the physical filtration members collectively have a longer in use time prior to being clogged, thereby permitting a longer operating time prior to the cleaning or replacement of the physical filtration members.
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