国家/地区
IPC部 A（2）
IPC大类 A01（2）
IPC小类 B32B（2）
IPC
发明人
公开年
申请年 2022（2）
专利权人

Film useful for preventing bird collision, comprises optical film sequentially comprising first protective layer, first reflective layer, first base material layer, polymer dispersed liquid crystal layer, second base material layer, second reflective layer and second protective layer.

NIE Y, LI W, YE X, XU Z, XUE Y, DU P, KONG Q

Laminated multipurpose pipe for house hold drainage system, factory drainage system, sewer drainage system and other drainage systems and water supply systems, has first epoxy layer, second epoxy layer, antimicrobial layer and junction.

KAMAL K, GAUR A, SHARMA K, KISHORE K