Cleaning device with auxiliary cleaner | Patent Number 11219348

US 11219348 B2
Application Number16799728
Publication NumberUS 20200205637 A1
Pendency1 year, 10 months, 22 days
Filled DateFeb 24, 2020
Priority DateMay 23, 2019
Publication DateJul 2, 2020
Expiration DateMay 22, 2039
Inventor/ApplicantsHye Jung Yang
Du Young Yang
Hye Jeong YANG
Du Young YANG
ExaminesGUIDOTTI, LAURA COLE
Art Unit3723
Technology Center3700
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