Wookjin LEE

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Dubendorf, CH

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Patents Grantslast 30 patents

Information Patent Grant
Method for building prestressed concrete structures by means of pro...
- Patent number 9,758,968
- Issue date Sep 12, 2017
- re-Fer AG
- Christian Leinenbach
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR BUILDING PRESTRESSED CONCRETE STRUCTURES BY MEANS OF PRO...
- Publication number 20160053492
- Publication date Feb 25, 2016
- RE-FER AG
- Christian LEINENBACH
- E04 - BUILDING