EXECUTION METHOD FOR DISPOSAL PIPE TYPE BORING

PROBLEM TO BE SOLVED: To provide an execution method for a disposal pipe type boring that has a name named after an invention where a hint is obtained from riprap for building a stone bridge, semipermanently maintains the life of the pipe, and continuously secures the sufficient discharge of fresh w...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	KAMEI ISAO
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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