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BEIEN MASCHFAB
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BEIEN MASCHFAB
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Application filed by BEIEN MASCHFABfiledCriticalBEIEN MASCHFAB
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Publication of FR1097680ApublicationCriticalpatent/FR1097680A/fr
E21C27/00—Machines which completely free the mineral from the seam
E21C27/20—Mineral freed by means not involving slitting
E21C27/32—Mineral freed by means not involving slitting by adjustable or non-adjustable planing means with or without loading arrangements
E21C27/34—Machine propelled along the working face by cable or chain
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Engineering & Computer Science
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Mining & Mineral Resources
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Mechanical Engineering
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Life Sciences & Earth Sciences
(AREA)
General Life Sciences & Earth Sciences
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Geochemistry & Mineralogy
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Geology
(AREA)
FR1097680D1953-02-211954-02-19Dispositif d'extraction raboteur, actionné par un mécanisme tracteur, plus spécialement pour l'extraction de charbon
ExpiredFR1097680A
(fr)