SE7703030L - Forfarande for bestemning av riktningen av borren och/eller for elektrisk overforing av information vid stigborrning i samband med brytning
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Forfarande for bestemning av riktningen av borren och/eller for elektrisk overforing av information vid stigborrning i samband med brytning
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Publication number
SE7703030L
SE7703030LSE7703030ASE7703030ASE7703030LSE 7703030 LSE7703030 LSE 7703030LSE 7703030 ASE7703030 ASE 7703030ASE 7703030 ASE7703030 ASE 7703030ASE 7703030 LSE7703030 LSE 7703030L
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Application filed by Tampella Oy AbfiledCriticalTampella Oy Ab
Publication of SE7703030LpublicationCriticalpatent/SE7703030L/xx
E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
E21D3/00—Raising shafts, i.e. working upwards from the bottom
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Engineering & Computer Science
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Mining & Mineral Resources
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Life Sciences & Earth Sciences
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General Life Sciences & Earth Sciences
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Geochemistry & Mineralogy
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Geology
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Near-Field Transmission Systems
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Earth Drilling
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SE7703030A1976-03-171977-03-17Forfarande for bestemning av riktningen av borren och/eller for elektrisk overforing av information vid stigborrning i samband med brytning
SE7703030L
(sv)