MASTER/SLAVE SHIELD EXCAVATING MACHINE
PURPOSE: To provide a master/slave shield excavating machine consisting of a master unit and sub-unit, which can excavate a tunnel having differing diameter continuously with the same machine, wherein a simple structure is introduced so that it is practicable to take in the earth and sand excavated...
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Main Authors | , , , , |
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Format | Patent |
Language | English |
Published |
23.07.1996
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Edition | 6 |
Subjects | |
Online Access | Get full text |
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