Young Hum JO

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Patents Grantslast 30 patents

Information Patent Grant
Double safety device for quick coupler
- Patent number 11,421,394
- Issue date Aug 23, 2022
- Young Hum Jo
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING

Patents Applicationslast 30 patents

Information Patent Application
DOUBLE SAFETY DEVICE FOR QUICK COUPLER
- Publication number 20190177946
- Publication date Jun 13, 2019
- DAEMO ENGINEERING CO., LTD.
- Young Hum JO
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING