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2007
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Invention
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Excavation device. A device for excavating and transporting material, especially earth, the devic... |
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Invention
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Excavation device. The invention relates to a device for excavating and transporting material, es... |
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Invention
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Method and device for renewing a ballast bed. In a method for the continuous renewal of a ballast... |
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2004
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Invention
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Method for measuring tracks. The invention relates to a method for measuring tracks in relation t... |
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1997
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Invention
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Process for optical measurement of relative angles. To calculate the distance and angle of a meas... |
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1993
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Invention
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Process for measuring relative angles. The process for measuring the angle between a measuring pl... |
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1992
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Invention
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Process for measuring railway lines. A light-receiving and emitting head (3) capable of swivellin... |
