Air flow passage for a vacuum cleaner | Patent Number 07455708
US 07455708 B2Filled DateNov 15, 2006
Priority DateJan 8, 1999
Publication DateSep 6, 2007
Expiration DateNov 25, 2016
Inventor/ApplicantsTed Szylowiec
Wayne Ernest Conrad
Helmut Gerhard Conrad
Wayne Ernest Conrad
Helmut Gerhard Conrad
ExaminesHOPKINS, ROBERT A
Art Unit1797
Technology Center1700
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