Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Mavor and Coulson Ltd
Original Assignee
Mavor and Coulson Ltd
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Filing date
Publication date
Application filed by Mavor and Coulson LtdfiledCriticalMavor and Coulson Ltd
Application grantedgrantedCritical
Publication of FR1125676ApublicationCriticalpatent/FR1125676A/fr
E21C27/00—Machines which completely free the mineral from the seam
E21C27/02—Machines which completely free the mineral from the seam solely by slitting
E21C27/04—Machines which completely free the mineral from the seam solely by slitting by a single chain guided on a frame with or without auxiliary slitting means
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Engineering & Computer Science
(AREA)
Mining & Mineral Resources
(AREA)
Mechanical Engineering
(AREA)
Life Sciences & Earth Sciences
(AREA)
General Life Sciences & Earth Sciences
(AREA)
Geochemistry & Mineralogy
(AREA)
Geology
(AREA)
FR1125676D1955-06-011955-06-01Machine améliorée pour l'extraction du charbon et d'autres minéraux
ExpiredFR1125676A
(fr)