Excavation machine with a pivotable kelly bar

An excavation machine including -a mast having a longitudinal direction, -a bar presenting a first end provided with an excavation tool, and -a carriage movable along the longitudinal direction of the mast and including a first holder member for holding the bar relative to the carriage, the carriage...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	CHAGNOT PHILIPPE, PIVERT LAURENT
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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