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Liquid spray jet assemblies
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Tool holders
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Retaining member for coal pick shaft and bore coupling - shaft retained in bore by spring urged insert
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Improvements in couplings
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Improvements in or relating to tools and toolholders
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Tool retaining devices
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Improvements in or relating to tool retaining devices
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Improvements in or relating to tool holding devices
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Improvements in or relating to coal cutting machines
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Improvements in or relating to mining tool retaining means
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Improvements in or relating to coal cutting chains
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Improvements in or relating to coal cutting chains
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Improvements in and relating to coal cutter chains
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