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2011
|
Invention
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Device and method for constructing underground structure. The present invention provides a device... |
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2009
|
Invention
|
Open-close type ratchet wrench. The present invention provides an open-close type ratchet wrench ... |
|
|
Invention
|
Grid-type drop-panel structure, and a construction method therefor. The present invention relates... |
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2008
|
Invention
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Multi-horizontal structure member forming method.
A method of forming multiple horizontal struct... |
|
|
Invention
|
Multi-horizontal structure member forming method. A method of forming multiple horizontal structu... |
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2007
|
Invention
|
Connecting structure of steel bar.
A steel bar connecting structure is disclosed. The steel bar ... |
|
|
Invention
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Connectting structure of steel bar. A steel bar connecting structure is disclosed. The steel bar ... |
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2006
|
Invention
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Underground earth retention strut construction method using horizontal frame structure. An underg... |
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2005
|
Invention
|
Phc pile used in permanent retaining wall structure and connection method of phc pile. The presen... |
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|
Invention
|
Reinforcement of foundation. The present invention relates to a reinforcement of foundation which... |
