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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mavor and Coulson Ltd
Original Assignee
Mavor and Coulson Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mavor and Coulson LtdfiledCriticalMavor and Coulson Ltd
Application grantedgrantedCritical
Publication of FR919802ApublicationCriticalpatent/FR919802A/fr
E21C29/00—Propulsion of machines for slitting or completely freeing the mineral from the seam
E21C29/02—Propulsion of machines for slitting or completely freeing the mineral from the seam by means on the machine exerting a thrust against fixed supports
FR919802D1944-03-091945-09-28Perfectionnements aux machines hydrauliques
ExpiredFR919802A
(fr)