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Thermal insulation for P-trap piping
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Patent number 5,540,255
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Issue date Jul 30, 1996
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Truebro, Inc.
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Steven R. Trueb
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Angle valve insulation
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Patent number 5,419,364
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Issue date May 30, 1995
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Truebro, Inc.
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Steven R. Trueb
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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P-trap protecting system
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Patent number 5,303,730
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Issue date Apr 19, 1994
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Truebro, Inc.
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Steven R. Trueb
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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