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EP0733151A1
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Shaft bearing in a rock and ground-drilling machine
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AU7023887A
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An apparatus in rock drilling machines or the like
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ZA8604056B
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A cutting tool
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SE8503271D0
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Core sampler for drilling holes
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SE8502519D0
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Drilling crown guide controlling device, in curved path
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US4637477A
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Device in rock drilling machines
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ZA8309495B
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Pressurized medium actuated gripping device
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CA1189501A
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Device in rock or earth drilling apparatus for rotary drilling
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ZA8203573B
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A device in rock or earth drilling apparatus for rotary drilling
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ZA8202939B
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Device for reciprocating motion of a rotating drilling body of a drilling machine
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SE8200218L
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Device to indicate that the core pipe is filled in connection with core drilling
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US4452321A
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Device in core barrels
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US4431225A
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Releasing device in core barrel grapplers
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SE8102725L
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Apparatus for detachably connecting bore tubes
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