Patents/Inventors

Jia Sen Qiu

GuangdongCN4 patents

5 Patents

US124046972025
Latch Bolt Installation Structure and Door Lock Using Such Structure
CMECH (GUANGZHOU) Ltd.
0 cites
US121807452024
Door Lock with Handle
CMECH (GUANGZHOU) Ltd.
0 cites
US120249192024
Latch Bolt Installation Structure and Door Lock Using Such Structure
CMECH (GUANGZHOU) Ltd.
0 cites
US116617632023
Anti-unlatched Mechanism and a Door Lock Thereof
CMECH (GUANGZHOU) Ltd.
0 cites
US115727062023
Handle-locking Mechanism and Door Lock Using Such Mechanism
CMECH (GUANGZHOU) Ltd.
0 cites