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Patents Grants
last 30 patents
Information
Patent Grant
Built-up rectangular steel column for filling concrete therein havi...
Patent number
7,665,259
Issue date
Feb 23, 2010
Korea National Housing Corporation
Young-Ho Yoon
E04 - BUILDING
Information
Patent Grant
System for automatically measuring piling results in a piling opera...
Patent number
5,303,162
Issue date
Apr 12, 1994
Korea National Housing Corporation
Myung Oh Yoon
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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