Proposal to tackle smog

The man, Du filed an application with the State Intellectual Property Office (SIPO) in March in the hopes of turning his “fan-away smog plan” into reality - Sakshi Post

Chinese Man’s Proposes Hand Held Fans To Tackle Beijing Smog

Nov 28, 2017
The man, Du filed an application with the State Intellectual Property Office (SIPO) in March in the hopes of turning his “fan-away smog plan” into reality
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