4. Boring or penetrating the earth
  5. Bit or bit element
  6. Magnetized or with magnet

Erik T. Hartzell

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Cemented carbide body used preferably for rock drilling and mine

Stock material or miscellaneous articles – Composite – Of inorganic material
Patent

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Cemented carbide body with a binder phase gradient and method of

Powder metallurgy processes – Powder metallurgy processes with heating or sintering – Metal and nonmetal in final product
Patent

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Cemented carbide tool

Boring or penetrating the earth – Bit or bit element – Magnetized or with magnet
Patent

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Profile ID: LFUS-PAI-P-826952

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