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Karl-Heinz Duemmel
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Lossburg, DE
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last 30 patents
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Patent Grant
Silencer, especially for portable motor chain saws
Patent number
4,142,607
Issue date
Mar 6, 1979
Firma Andreas Stihl
Goetz Landwehr
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES