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Method of zoning grate surfaces
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Patent number 4,296,160
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Issue date Oct 20, 1981
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Mateflex/Mele Corporation
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Nicholas G. Forlenza
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Construction method
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Patent number 4,054,987
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Issue date Oct 25, 1977
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Mateflex/Mele Corporation
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Nicholas G. Forlenza
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES