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Howard A. Purvis

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Double disc seal valve

F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent

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Guided slide valve

F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent

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Refinery control valve

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Patent

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Slide valve with integrated removable internals

F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent

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Profile ID: LFCA-PAI-P-323766

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