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Johannes Liebermann
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Lichtenfels-Schoensreuth, DE
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Patents Grants
last 30 patents
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Patent Grant
Method for producing porcelain, porcelain and ceramic isolator form...
Patent number
6,475,941
Issue date
Nov 5, 2002
Siemens Aktiengesellschaft
Johannes Liebermann
H01 - BASIC ELECTRIC ELEMENTS
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Patent Grant
Surface-modified insulator and method of modifying the surface of a...
Patent number
6,426,150
Issue date
Jul 30, 2002
Degussa AG
Peter Jenkner
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
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Patent Application
METHOD FOR PRODUCING PORCELAIN, PORCELAIN AND CERAMIC ISOLATOR FORM...
Publication number
20020155943
Publication date
Oct 24, 2002
Johannes Liebermann
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES