Conrad machine

Conrad machine

[′kän‚rad mə′shēn]
(mining engineering)
Mechanized pit digger used in checking of alluvial boring; sections of tubing, 5 feet (152 centimeters) long and 2 feet (61 centimeters) in inside diameter, are worked into the ground while spoil is removed by means of a bucket or grab.
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Ampersand Art Supply Art Supplies Wholesale Atlantic Papers Blick Art Materials Conrad Machine Co.