国家/地区 中国（2）
IPC部 A（2） B（2） D（2）
IPC大类 A41（2）
IPC小类 A41D（2）
IPC A41D031/04（2）
发明人
公开年
申请年
专利权人

Full-formed knit pant having knee pad useful for athletes, middle-aged and old people, and knee disease patients, comprises knee pad integrally formed with pant main body, including transition zone and protective zone.

LIU J, QIAN T, YU X

Self-charging and self-cleaning melt-blown non-woven fabric used in mask, comprises melt-blown fiber comprising permanent electret and piezoelectric material.

WU X, SONG T, LIN D, LIN Y