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Retaining wall block
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Patent number D466229
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Issue date Nov 26, 2002
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Rothbury International Inc.
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Angelo Risi
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D25 - Building units and construction elements
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Retaining wall block
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Patent number D465855
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Issue date Nov 19, 2002
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Rothbury International Inc.
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Angelo Risi
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D25 - Building units and construction elements
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Retaining wall block
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Patent number D464440
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Issue date Oct 15, 2002
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Rothbury International Inc.
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Angelo Risi
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D25 - Building units and construction elements
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Retaining wall block
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Patent number D464149
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Issue date Oct 8, 2002
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Rothbury International Inc.
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Angelo Risi
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D25 - Building units and construction elements
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Block
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Patent number D451207
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Issue date Nov 27, 2001
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Rothbury International Inc.
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Angelo Risi
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D25 - Building units and construction elements
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Block
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Patent number D429005
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Issue date Aug 1, 2000
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Rothbury International Inc.
-
Angelo Risi
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D25 - Building units and construction elements
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Modular block
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Patent number D406358
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Issue date Mar 2, 1999
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Rothbury International Inc.
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Angelo Risi
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D25 - Building units and construction elements
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Modular block
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Patent number D403785
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Issue date Jan 5, 1999
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Rothbury International Inc.
-
Angelo Risi
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D25 - Building units and construction elements
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Modular block
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Patent number D403438
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Issue date Dec 29, 1998
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Rothbury International Inc.
-
Angelo Risi
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D25 - Building units and construction elements
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Modular block
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Patent number D403437
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Issue date Dec 29, 1998
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Rothbury International Inc.
-
Angelo Risi
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D25 - Building units and construction elements