Derniers inventions, produits et services
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2021
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Invention
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Air-operated hammer. An air-operated hammer, comprising a hollow ram; a frame; an air cylinder an... |
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2020
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Invention
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Lifting hook |
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Invention
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Stable lifting hook. A lifting hook, comprising a linear mid-section; a first curved section exte... |
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2017
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P/S
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Construction equipment and machinery, namely, hydraulic crawler rigs, caisson drilling machines, ... |
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1996
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P/S
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construction machinery and equipment, namely, [ concrete mixers, derricks, ] hoists [, hoisting e... |
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