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US4206947A
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Percussive slot cutter
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CA1012991A
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Disc cutting units for use on rock boring machines
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ZM6175A1
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Improvements in or relating to disc cutters for rock boring machines
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GB1490441A
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Percussive slot cutters
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CA1025001A
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Percussive slot cutters
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DE2449405A1
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Disc boring and drilling tool - has disc peripherally grooved for equi-spaced cutters with intervening filler spaces (OE151275)
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CH586836A5
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Disc boring and drilling tool - has disc peripherally grooved for equi-spaced cutters with intervening filler spaces (OE151275)
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IT1022576B
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Disc boring and drilling tool - has disc peripherally grooved for equi-spaced cutters with intervening filler spaces (OE151275)
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ZM11374A1
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Improvements in or relating to disc cutters for rock boring machines
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ZA7403063B
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Improvements in or relating to disc cutters for rock boring machines
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ZA7400384B
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Percussive slot cutter
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