Derniers inventions, produits et services
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2020
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Invention
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Electrical polarization for removing a formwork from a shuttered reinforced-concrete wall. Disclo... |
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Invention
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Controlling electrical bias for facilitating striking of a reinforced-concrete wall. The method f... |
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2012
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P/S
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Common metals and their alloys; building materials of metal;
transportable buildings of metal; r... |
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2001
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Invention
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Tunnel form. The invention relates to a tunnel form comprising:
three forming walls (2, 3) form... |
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1997
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P/S
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Common metals and their alloys; building materials of metal, metal components for building, trans... |
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