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Guenter Kroeger
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Rahden, DE
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Patents Grants
last 30 patents
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Patent Grant
Non-positive-displacement machine comprising a spiral channel provi...
Patent number
8,062,006
Issue date
Nov 22, 2011
MANN+HUMMEL GMBH
Karl-Ernst Hummel
F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
Patents Applications
last 30 patents
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Patent Application
Non-Positive-Displacement Machine Comprising a Spiral Channel Provi...
Publication number
20080034754
Publication date
Feb 14, 2008
Mann & Hummel GmbH
Karl-Ernst Hummel
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES