Surface cleaning apparatus | Patent Number 11122949
US 11122949 B2Filled DateDec 22, 2020
Priority DateOct 28, 2015
Publication DateApr 15, 2021
Expiration DateOct 27, 2035
Inventor/ApplicantsJincheng Xia
Xin Chen
Jianjun Ge
Kam Hoi Ma
Yongsheng Liang
Zhenjiang Yin
Xin Chen
Jianjun Ge
Kam Hoi Ma
Yongsheng Liang
Zhenjiang Yin
ExaminesNGUYEN, DUNG V
Art Unit3723
Technology Center3700
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