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Class Information
Number: 175/362
Name: Boring or penetrating the earth > Bit or bit element > Rolling cutter bit or rolling cutter bit element > Cross axle > Vertically disaligned cross axle sections
Description: Apparatus comprising a plurality of rolling cutter elements disposed on axes which extend in a single diametric plane through the bit, and which are (1) angularly related to each other within the plane, or (2) offset vertically from each other within the plane.










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Patent Number Title Of Patent Date Issued











 
 
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