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Tsai-Fa LIU
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Taichung, TW
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Patents Grants
last 30 patents
Information
Patent Grant
Replaceable magnetic screw-locking depth positoining head
Patent number
9,833,887
Issue date
Dec 5, 2017
Tsai-Fa Liu
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information
Patent Grant
Handle of hand tools
Patent number
D709346
Issue date
Jul 22, 2014
Tsai-Fa Liu
D08 - Tools and hardware
Information
Patent Grant
Universal anti-torque screwdriver head structure
Patent number
8,770,070
Issue date
Jul 8, 2014
Tsai-Fa Liu
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information
Patent Grant
Drilling bit with the depth-limiting and angle-leading function for...
Patent number
8,465,234
Issue date
Jun 18, 2013
Tsai Fa Liu
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Tool holder assembly
Patent number
8,083,060
Issue date
Dec 27, 2011
Tsai-Fa Liu
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information
Patent Grant
Joint adapter for a power drill screw driver
Patent number
6,530,299
Issue date
Mar 11, 2003
Tsai-Fa Liu
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information
Patent Grant
Screwdriver handle
Patent number
D416776
Issue date
Nov 23, 1999
Tsai-Fa Liu
D08 - Tools and hardware
Information
Patent Grant
Precision screwdriver equipped with a rotatable cap
Patent number
5,823,078
Issue date
Oct 20, 1998
Tsai-Fa Liu
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information
Patent Grant
Tool handle having a tool kit
Patent number
5,522,291
Issue date
Jun 4, 1996
Tsai-Fa Liu
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Patents Applications
last 30 patents
Information
Patent Application
SOCKET STRUCTURE FOR INSTALLING AND REMOVING TIRES
Publication number
20200290178
Publication date
Sep 17, 2020
Tsai-Fa LIU
B60 - VEHICLES IN GENERAL
Information
Patent Application
ANGLED ROD FOR A HAND TOOL
Publication number
20160361804
Publication date
Dec 15, 2016
Tsai Fa Liu
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information
Patent Application
UNIVERSAL ANTI-TORQUE SCREWDRIVER HEAD STRUCTURE
Publication number
20130276595
Publication date
Oct 24, 2013
Tsai-Fa LIU
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information
Patent Application
TOOL HOLDER ASSEMBLY
Publication number
20120000805
Publication date
Jan 5, 2012
Tsai-Fa LIU
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information
Patent Application
DRILLING BIT WITH THE DEPTH-LIMITING AND ANGLE-LEADING FUNCTION FOR...
Publication number
20110110740
Publication date
May 12, 2011
Tsai Fa Liu
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR