DD243544A1
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Method for the refrigeration of carbon beef
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DD239741A1
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Welding processes for gravy parts, especially for briket presses
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DD237863A1
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Process for the universal use of hungards
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DD236675A1
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Process for the extinguishing of solvents from extracted brown coal
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DD225185A1
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Process for cooling bedding
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DD222862A1
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Process for preventing purification of drying plants
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DD216777A1
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Method for the unlimited detection of changing properties of the spiny bed material
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DD214518A1
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Means for promoting the adultation of cultural plants
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DD213617A1
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Tiltable device for mounting rotational symmetric parts
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DE940284C
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Schraembaggergeraet with shield for the mechanical extraction of underground treasures from a guide line in the dismantling
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DE938543C
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Schraembaggergeraet with shield for mining underground natural resources, preferably lignite
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