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Safety pressure relief device
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Patent number 4,301,938
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Issue date Nov 24, 1981
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BS & B Safety Systems, Inc.
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Loren E. Wood
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Safety pressure relief device
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Patent number 4,278,181
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Issue date Jul 14, 1981
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BS & B Safety Systems, Inc.
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Loren E. Wood
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Safety pressure relief device
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Patent number 4,269,214
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Issue date May 26, 1981
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BS & B Safety Systems, Inc.
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Calvin C. Forsythe
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Safety pressure relief apparatus
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Patent number 4,236,648
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Issue date Dec 2, 1980
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Black, Sivalls & Bryson
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Loren E. Wood
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...