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Patents
Patents Assigned to Dongguan Viper Cleaning Equipment Co., Ltd.
Patents Assigned to Dongguan Viper Cleaning Equipment Co., Ltd.
Sweeping machine
Patent number:
D756576
Type:
Grant
Filed:
November 21, 2012
Date of Patent:
May 17, 2016
Assignee:
Dongguan Viper Cleaning Equipment Co., Ltd.
Inventor:
ZiSong Wang