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CZ202491A3
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spraying apparatus circuit
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CS119591A3
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Hydraulic prop with external feeding
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CS644290A3
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Mechanical support for medium dipping seam to high-dipping seams
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CS508390A3
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Vacuum switch
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CS383290A3
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Circuit for the control of a coal plough complex
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CS57090A3
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Circuit of a spark-safe horn
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CS593789A3
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Connection of a control circuit of mining machines with a trailing cable
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CS8904765A1
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Connection for program sparkproof control of hydraulic equipment.
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CS276422B6
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Device for the correction of advancing support unit position
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CS8902721A2
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Apparatus for spraying sealing flanges of a mine-filling-up apparatus mechanized exhaust
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CS275162B2
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Connection for mining machines' contactors spark-proof control circuit
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GB938268A
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Apparatus for moving a coal cutting machine along a coal face
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GB888554A
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A cutting tool for mineral mining machines
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