国家/地区 中国（2）
IPC部 A（2） B（2）
IPC大类 B01（2）
IPC小类 B01D（2）
IPC
发明人 XIE C（2）
公开年 2022（2）
申请年
专利权人

Antiviral protective mask comprises filter bag provided with filter layer, absorbing layer, protective layer and skin-friendly layer from outside in sequence, and anti-virus bag provided between absorbing layer and protective layer.

WAN L, ZHAO Z, XIE C, TANG J

New-type convenient cover for oral liquid bottle, has inverted filter residue container that is set on suction pipe, and filter screen that is placed on inverted residue container.

XIE C, LIU G