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2014
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Invention
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Pipe joint gasket and method of making same. A gasket for preventing separation of interconnected... |
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2010
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Invention
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Pipe joint gasket and method of using same. A gasket for preventing separation of interconnected ... |
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2009
|
Invention
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Pair of interconnected centrifugally cast ductile iron utility pole members |
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Invention
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Coreless pole mold and method of making same. A utility pole mold including an elongated, hollow ... |
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Invention
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Interconnected centrifugally cast, ductile iron utility pole members |
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|
Invention
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Centrifugally cast ductile iron utility pole having stepped portions |
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2008
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Invention
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Interconnectable utility pole members. A metal utility pole including a hollow, centrifugally cas... |
