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DE734156C
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Device for bracing notching and slitting machines
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DE745117C
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Process and device for extracting coal in quarrying piers, namely in civil lignite mining
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DE654079C
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Mobile column cutting and slotting machine
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DE655244C
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Mobile burglar notch machine
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DE643598C
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Mobile burglar notch machine for mining operations
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DE646336C
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Mobile cutting and slotting machine
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DE525396C
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Resilient cap rail iron connection for pit lining
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DE509809C
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Cutting tool for chain cutting machines
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DE533563C
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Compressed air lifting device on dump trucks
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DE482631C
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Automatic lubrication device for breakers and hammer drills
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DE538280C
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Flexible lug connection for iron pit lining made of profile iron
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