国家/地区 中国（3）
IPC部 F（3）
IPC大类 F26（3）
IPC小类 F26B（3）
IPC F26B009/10（3）
发明人 ZHANG L（2）
公开年 2020（3）
申请年 2020（3） 
专利权人 WUXI HANCHEN.（2）

Chopping board frame, has main body provided with manual switch, micro-switch and graphene electric heating film, where micro-switch is located at bottom part of containing part when chopping block is taken off.

HONG S

Graphene electric heating film oven, has box body provided with graphene electric heating film that is located on path of air convection, where positive and negative electrodes of film are connected to power supply line in electric control cabinet.

ZHANG L

Graphene electro-thermal film oven comprises oven main body provided with power supply box and circulating fan, other side provided with graphene electric heating film mechanism, and temperature knob located at lower end of control button.

ZHANG L