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Herbert Grabner
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Patents Grants
last 30 patents
Information
Patent Grant
Brush unit for an electric machine, spring and seal arrangement for...
Patent number
8,427,027
Issue date
Apr 23, 2013
Hoffmann & Co. Elektrokohle Aktiengessellschaft
Herbert Grabner
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Process for producing sliding bodies for electric collectors
Patent number
5,630,973
Issue date
May 20, 1997
Hoffman & Co. Elektrokohle Ges. mbH
Johann Hoell
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Carbon brush for collector
Patent number
5,263,562
Issue date
Nov 23, 1993
Hoffman & Co. Elektrokohle Gesellschaft m.b.H
Peter Hoffmann
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Collector shoe for collector and process for producing it
Patent number
5,193,656
Issue date
Mar 16, 1993
Hoffmann & Co. Elektrokohle Gesellschaft mbH
Peter Hoffmann
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Sliding strip for collector with rupture detection device
Patent number
5,189,903
Issue date
Mar 2, 1993
Hoffmann & Co. Elektrokohle Gesellschaft mbH
Peter Hoffmann
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Collector shoe for collector and process for producing it
Patent number
5,152,380
Issue date
Oct 6, 1992
Hoffmann & Co. Elektrokohle Gesellschaft mbH
Peter Hoffmann
B60 - VEHICLES IN GENERAL
Patents Applications
last 30 patents
Information
Patent Application
BRUSH UNIT FOR AN ELECTRIC MACHINE, SPRING AND SEAL ARRANGEMENT FOR...
Publication number
20100289360
Publication date
Nov 18, 2010
Herbert Grabner
H01 - BASIC ELECTRIC ELEMENTS