| 2025 | Invention | Pipe-to-be-removed identification device enabling external identification, pipe selection method,... | 
				    			
				    				
				    					| 2024 | Invention | Multi-directional vise device and method of cutting multi-directional specimens using the same. 
... | 
				    			
				    				
				    					|  | Invention | Assembly-type double saw blade. The present invention relates to an assembly-type double saw blad... | 
				    			
				    				
				    					| 2021 | Invention | Multifunctional device for removing film from pipe. 
A multifunctional device for removing a film... | 
				    			
				    				
				    					|  | Invention | Multifunctional device for removing film from pipe. A multifunctional device for removing a film ... | 
				    			
				    				
				    					|  | Invention | Pipe cutting device. A pipe cutting device includes: a body; a pipe fixing part disposed adjacent... | 
				    			
				    				
				    					| 2020 | Invention | Carriage for pipe machining. A pipe machining carriage, including a carriage configured to travel... | 
				    			
				    				
				    					|  | G/S | Gas welding machines; gas cutting machines; metalworking machines, namely, milling machines and l... | 
				    			
				    				
				    					|  | G/S | Wholesale and retail store services and online wholesale and retail store services featuring cutt... | 
				    			
				    				
				    					|  | G/S | Gas welding machines; gas cutting machines; machine tools; metalworking machines; metalworking ma... | 
				    			
				    				
				    					|  | G/S | Wholesale services for cutters [machines]; retail services for cutters [machines]; wholesale serv... | 
				    			
				    				
				    					| 2019 | Invention | Facing machine for preventing inflow of cutting chips into tube. A tube-facing machine includes a... | 
				    			
				    				
				    					|  | Invention | Facing machine for preventing inflow of cutting chips into tube. The present invention relates to... | 
				    			
				    				
				    					|  | Invention | Electrode rod grinder having multi-collet. The present invention relates to an electrode rod grin... | 
				    			
				    				
				    					| 2017 | Invention | Pipe cutting and beveling machine. A machine for cutting or beveling a pipe. A cutter unit rotate... | 
				    			
				    				
				    					|  | Invention | Pipe cutting and beveling machine. Disclosed is a dedicated machine capable of cutting or bevelin... | 
				    			
				    				
				    					| 2015 | Invention | Orbital cutting apparatus capable of freely and selectively controlling plurality of cutting tool... | 
				    			
				    				
				    					|  | Invention | Power transfer device, orbital pipe cutting device and hydraulic chucking device. Disclosed are a... | 
				    			
				    				
				    					|  | Invention | Power transmitting device for transmitting external force into rotating body, and orbital pipe cu... | 
				    			
				    				
				    					| 2014 | Invention | Apparatus for processing circular or square tube or bar material to desired shape by freely contr... | 
				    			
				    				
				    					|  | Invention | Device capable of processing circular or angled tube member or rod member into desired shape by f... | 
				    			
				    				
				    					| 2013 | Invention | Chamfering machine for providing optimal operation condition during operation of cutting surface ... |