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GB8408091D0
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Mineral cutter pick and box
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GB2035418A
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Coal cutter picks and pick boxes
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GB2035419A
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Coal cutter picks and pick boxes
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GB1081573A
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Improvements in or relating to picks and pick-boxes for coal-cutting machines
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GB1074922A
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Improvements in or relating to coal-or other mineral-cutter picks with hard metal tips
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GB1018969A
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Improvements in or relating to cutting tools
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GB981489A
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Improvements in or relating to rock bits
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GB971838A
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Improvements in or relating to coal-cutting picks
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GB883145A
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Improvements in and relating to coal cutter picks
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GB736983A
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Improvements in rotary drills for boring earth, rock, coal and like material
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