A device for measuring drill rod and drill hole orientations /
20
Main Authors: | , |
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Format: | |
Published: |
Livingston, West Lothian : Transport and Road Research Laboratory,
1984
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Subjects: |
20
Main Authors: | , |
---|---|
Format: | |
Published: |
Livingston, West Lothian : Transport and Road Research Laboratory,
1984
|
Subjects: |