Patents/Inventors

Jui-chieh Cheng

Chiayi CountyTW2 patents

4 Patents

US123878622025
Electronic Lock
TONG LUNG METAL INDUSTRY CO., Ltd.
0 cites
USD10848192025
Electronic Lock
TONG LUNG METAL INDUSTRY CO., Ltd.
0 cites
USD10848252025
Electronic Lock
TONG LUNG METAL INDUSTRY CO., Ltd.
0 cites
US123240712025
Electronic Lock
TONG LUNG METAL INDUSTRY CO., Ltd.
0 cites