Search on: TRENCHING MACHINES 
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Descriptor English:   Trenching Machines 
Descriptor Spanish:   Zanjadoras 
Descriptor Portuguese:   Valas 
Tree Number:   SP4.006.062.503.854
See Related English:   Land Movement
 
Allowable Qualifiers English:  
adverse effects analysis
classification economics
ethics ethnology
history legislation & jurisprudence
methods prevention & control
policies statistics & numerical data
Record Number:   51676 

Occurrence in VHL: 		 

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