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Shandong Province, CN
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Patents Grants
last 30 patents
Information
Patent Grant
Locking drill chuck
Patent number
7,654,539
Issue date
Feb 2, 2010
Shandong Weida Machinery Co., Ltd.
Guimo Yang
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Chuck
Patent number
7,296,803
Issue date
Nov 20, 2007
Shandong Weida Machinery Co., Ltd.
Guimo Yang
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Locking drill chuck
Patent number
7,249,770
Issue date
Jul 31, 2007
Shandong Weida Machinery Co., Ltd.
Guimo Yang
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Hammerlock chuck
Patent number
7,128,324
Issue date
Oct 31, 2006
Shandong Weida Machinery Co., Ltd.
Guimo Yang
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Locking drill chuck
Patent number
6,991,238
Issue date
Jan 31, 2006
Shandong Weida Machinery Co., Ltd.
Guimo Yang
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Hammerlock chuck
Patent number
6,848,691
Issue date
Feb 1, 2005
Shandong Weida Machinery Co., Ltd.
Guimo Yang
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Manual tightened chuck
Patent number
6,247,705
Issue date
Jun 19, 2001
Shandong Weida Machine Tool Tools Group Corporation
Guimo Yang
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Patents Applications
last 30 patents
Information
Patent Application
Locking drill chuck
Publication number
20070013150
Publication date
Jan 18, 2007
Shandong Weida Machinery Co., Ltd.
Guimo Yang
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Self-locking drill chuck
Publication number
20060261563
Publication date
Nov 23, 2006
Guimo Yang
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Hammerlock chuck
Publication number
20050161890
Publication date
Jul 28, 2005
Guimo Yang
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Locking drill chuck
Publication number
20050023775
Publication date
Feb 3, 2005
SHANDONG WEIDA MACHINERY CO., LTD.
Guimo Yang
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Locking drill chuck
Publication number
20050023776
Publication date
Feb 3, 2005
Guimo Yang
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Chuck
Publication number
20040217558
Publication date
Nov 4, 2004
Guimo Yang
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Hammerlock chuck
Publication number
20030107190
Publication date
Jun 12, 2003
Guimo Yang
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR