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Fail-safe mechanism
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Patent number 4,420,281
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Issue date Dec 13, 1983
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AMP, Incorporated
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Robert E. Dehoff
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Pipeline tap and connecting device
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Patent number 4,067,353
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Issue date Jan 10, 1978
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AMP Incorporated
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Robert Eugene DeHoff
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Repair coupling
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Patent number 3,986,731
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Issue date Oct 19, 1976
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AMP Incorporated
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Robert Eugene DeHoff
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...