Jeong Seok Oh

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Changwon-si, KR

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Patents Grantslast 30 patents

Information Patent Grant
Welding method for shell and tube
- Patent number 9,573,219
- Issue date Feb 21, 2017
- SEWON CELLONTECH CO., LTD.
- Yong Hyun Yoo
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
WELDING METHOD FOR SHELL AND TUBE
- Publication number 20160288240
- Publication date Oct 6, 2016
- SEWON CELLONTECH CO.,LTD.
- Yong Hyun Yoo
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR