国家/地区 中国（3）
IPC部 B（3）
IPC大类 B08（3）
IPC小类 B08B（3）
IPC B08B009/087（2）
发明人 LI Y（3）
公开年 2023（3）
申请年 2022（3） 
专利权人

Reaction vessel graphene producing lubricating oil, comprises bottom plate and kettle barrel completely passing through bottom plate, where top end of kettle barrel is welded with top plate, and bottom of top plate.

ZHUANG W, LI Y, LI H

Preparation graphene of antibacterial antiviral finishing agent, comprises reaction tank, where upper side of reaction tank is provided with tank cover, and brush hair is jointed with the inner wall of the reaction tank.

LUO W, ZHANG Q, ZHAO H, WANG J, LI Y

Audio/video recording instrument e.g. law enforcement audio/video recorder, has supporting spring whose top end is connected with sleeve, where bottom end of supporting spring is connected to bottom end mounting column.

LI Y