PL321987A1
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Drive unit
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PL322031A1
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Belt conveyor drive unit, method of mounting and dismounting same as well as mounting and dismounting equipment for use in that method
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PL314569A1
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Low-alloy constructional cast steels
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PL312344A1
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Passage shield
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PL311896A1
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Thermally insulating covering for moulding riser portions of foundry moulds
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PL308695A1
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Method of constrolling operation of a rope winch used in conveyor belt tensioning units
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PL308651A1
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Conveyor belt tensioning unit
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PL308441A1
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Low-alloy constructional cast steel
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PL307094A1
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Low-alloy constructional cast steel
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PL301912A1
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Constructional alloyed cast steel
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PL287094A1
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Transmission rope tensioning apparatus
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PL286991A1
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Mine lining
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PL286990A1
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Crosse-bar of mine lining
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