Siegfried Breitfelder

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Jena, DE

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Patents Grantslast 30 patents

Information Patent Grant
Device for producing a glass melt
- Patent number 6,735,237
- Issue date May 11, 2004
- Schott Glas
- Klaus-Dieter Duch
- C03 - GLASS MINERAL OR SLAG WOOL

Patents Applicationslast 30 patents

Information Patent Application
Device for producing a glass melt
- Publication number 20020159497
- Publication date Oct 31, 2002
- Klaus-Dieter Duch
- C03 - GLASS MINERAL OR SLAG WOOL