Dual-purpose vacuum cleaner
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United States of America Patent
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Nov 3, 2015
Grant Date -
Oct 17, 2013
app pub date -
Apr 11, 2013
filing date -
Apr 12, 2012
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A dual-purpose vacuum cleaner includes a self-walking carriage including three or more wheels, an accommodation chamber providing at least one bearing face, a roller brush, a dust guide, a passageway connected to the accommodation chamber and a plurality of first contacts disposed in the accommodation chamber, a hand-held vacuum cleaner detachably accommodated in the accommodation chamber and including at least one abutment face, a handle, a dust suction entrance attached to the passageway and a plurality of second contacts respectively physically kept in contact with the first contacts, and a cover covered on the self-walking carriage to conceal the hand-held vacuum cleaner in the self-walking carriage.
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