Gerhard Fischer

Follow

Person

Freiberg, DD

People

Patents Grantslast 30 patents

Information Patent Grant
Process for the preparation of pure aluminum chloride hexahydrate
- Patent number 4,264,332
- Issue date Apr 28, 1981
- Veb Mansfield Kombinat Wilhelm Pieck
- Siegfried Ziegenbaig
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of pure aluminum oxide
- Patent number 4,224,287
- Issue date Sep 23, 1980
- VEB Mansfeld Kombinat Wilhelm Pieck
- Siegfried Ziegenbalg
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...