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Non-drip valve apparatus
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Patent number 4,354,519
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Issue date Oct 19, 1982
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Curt A. Bjorklund
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Valve for a burner system
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Patent number 4,270,561
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Issue date Jun 2, 1981
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Curt A. Bjorklund
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Purging apparatus
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Patent number 4,181,262
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Issue date Jan 1, 1980
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Curt A. Bjorklund
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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Valve unit
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Patent number 4,172,471
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Issue date Oct 30, 1979
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Curt A. Bjorklund
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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Valve arrangement
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Patent number 4,142,707
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Issue date Mar 6, 1979
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Curt A. Bjorklund
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Non-drip valve
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Patent number 4,134,428
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Issue date Jan 16, 1979
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Curt A. Bjorklund
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES