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Rudolf Krapf
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Leimen, DE
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last 30 patents
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Patent Grant
Electrochemical measuring device for determining the oxygen content...
Patent number
4,368,431
Issue date
Jan 11, 1983
Brown, Boveri & Cie Aktiengesellschaft
Franz-Josef Rohr
G01 - MEASURING TESTING
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Patent Grant
Apparatus for diverting an exhaust stream
Patent number
4,155,339
Issue date
May 22, 1979
Volkswagenwerk Aktiengesellschaft
Istvan Geiger
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Valved apparatus for diverting an exhaust stream
Patent number
4,155,338
Issue date
May 22, 1979
Volkswagenwerk Aktiengesellschaft
Istvan Geiger
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Electrochemical sensor
Patent number
4,128,469
Issue date
Dec 5, 1978
Brown, Boveri & Cie AG
Franz-Josef Rohr
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS