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Hans Bukowski
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Essen, DE
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last 30 patents
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Patent Grant
Process for helium enrichment
Patent number
5,089,048
Issue date
Feb 18, 1992
Bergwerksverband GmbH
Karl Knoblauch
C01 - INORGANIC CHEMISTRY
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Patent Grant
Process for helium recovery
Patent number
5,080,694
Issue date
Jan 14, 1992
Bergwerksverband GmbH
Karl Knoblauch
C01 - INORGANIC CHEMISTRY