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Vent valve
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Patent number 8,561,637
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Issue date Oct 22, 2013
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Girard Equipment, Inc.
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Joseph Petrarca
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Pressure relief valve
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Patent number 6,994,101
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Issue date Feb 7, 2006
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Girard Equipment, Inc.
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John L. Freiler
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Venting cap with yieldable plastic ring
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Patent number 6,145,530
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Issue date Nov 14, 2000
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Girard Equipment Inc.
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Michael A. Fernandez
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Jet-flow pressure relief vent
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Patent number 5,203,372
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Issue date Apr 20, 1993
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Girard Equipment Inc.
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John L. Freiler
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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