-
Latch bolt operating device
-
Patent number 5,722,273
-
Issue date Mar 3, 1998
-
Tong-Lung Metal Industry Co., Ltd.
-
San-Yi Lin
-
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
-
-
-
-
-
Reinforced cylindrical door lock set
-
Patent number 5,385,374
-
Issue date Jan 31, 1995
-
Tong-Lung Metal Industry Co., Ltd.
-
Yaw-Shin Fann
-
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
-
-
Duplex latch-bolt mechanism
-
Patent number 5,074,605
-
Issue date Dec 24, 1991
-
Tong-Lung Metal Industry Co., Ltd.
-
Yaw-Shin Fann
-
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
-