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Class Information
Number: 175/358
Name: Boring or penetrating the earth > Bit or bit element > Rolling cutter bit or rolling cutter bit element > Circumferentially displaced cutter axes > Mutually contacting cutter supports
Description: Apparatus in which all of the cutter elements are journaled on a separate axle or pin which intersect, abut, or otherwise engage each other under the bit head so as to support or brace each other.

Sub-classes under this class:

Class Number Class Name Patents
175/359 With bearing or seal details 21

Patents under this class:

Patent Number Title Of Patent Date Issued
4623027 Unsegmented rotary rock bit structure and hydraulic fitting Nov. 18, 1986

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