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Gas tank evacuator
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Patent number 5,529,097
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Issue date Jun 25, 1996
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Michael C. Campbell
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F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
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Gas tank evacuator
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Patent number 5,469,898
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Issue date Nov 28, 1995
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Michael C. Campbell
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F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
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Gas tank evacuator
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Patent number 5,421,380
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Issue date Jun 6, 1995
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Michael C. Campbell
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F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
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Cryogenic storage container
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Patent number 5,005,362
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Issue date Apr 9, 1991
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The BOC Group, Inc.
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William R. Weltmer
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F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
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1561102
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Patent number 1,561,102
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Issue date Nov 10, 1925
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F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS