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| Application No. | Application Title | Issue Date |
| 20100096036 | FLUID-CROSSING GATE FOR PIPELINE AND FLUID-CROSSING METHOD USING THE SAME A fluid-crossing gate for a pipeline which is inserted into the interior of a pipeline through a hole punched at a certain portion of the pipeline for crossing the flow of a fluid, is disclosed, which comprises a cylindrical body which is engaged to the pipeline; an ope... | 04/22/2010 |
| 20070186987 | Dual chamber orifice fitting isolation valve Apparatus and methods for operating a dual chamber orifice fitting. The dual chamber orifice fitting comprises a body having a lower chamber and a top having an upper chamber. An aperture connects the upper chamber to the lower chamber. A closure member is pivotally mou... | 08/16/2007 |
