国家/地区 中国（3）
IPC部 B（3） C（2）
IPC大类 B01（3） B08（3） C01（2）
IPC小类 B01D（3）
IPC B08B013/00（3）
发明人
公开年 2022（3）
申请年 2021（2） 
专利权人

Heating oil graphene extracting and purifying device, has separating screen fixedly installed on inner wall of purifying device main body, moving plate fixed on separating screen, and dredging block fixedly installed on bottom end of moving plate.

DONG Y, LI J, ZHANG W

Multi-pass scanning device for laser-induced graphene, comprises foil material conveying device comprising unreeling machine, guide roller, winder, feedback sensor, and controller, and laser scanning device including scanning focusing head.

YANG Y, SUN B, CHEN Y, ZHOU S

Cleaning device, has shell used for storing cleaning liquid, and self-cleaning assembly movably connected to inner wall of shell, so as to clean inner wall and/or cleaning liquid when moving in shell, where first cleaning assembly includes multiple supporting pieces.

WANG S