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David S. Rivers
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Thorndale, PA, US
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last 30 patents
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Patent Grant
To hose used to install loose fill insulation
Patent number
6,336,474
Issue date
Jan 8, 2002
CertainTeed Corporation
Maurice James Kelley
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Patent Grant
Baled insulation material blowing apparatus and method
Patent number
6,088,968
Issue date
Jul 18, 2000
CertainTeed Corporation
Everett S. Williston
E04 - BUILDING