Class Information
Number: 175/396
Name: Boring or penetrating the earth > Bit or bit element > Axially parallel side wall with transverse cuttings retaining portion
Description: Apparatus in which the bit includes a portion laterally spaced from the axis of the bit, and substantially parallel to said axis, and another portion substantially perpendicular to said first portion, said other portion extending from said first portion toward said axis, said portions being specifically described as adapted to lift cut material from the borehole.
Patents under this class:
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