4. Boring or penetrating the earth
  5. Bit or bit element
  6. Specific or diverse material

Gabriel B. Collins

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Earth-boring bits

Boring or penetrating the earth – Bit or bit element – Specific or diverse material
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Earth-boring bits

Powder metallurgy processes – Powder metallurgy processes with heating or sintering – Metal and nonmetal in final product
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Method for separating heavy isotopes of hydrogen from water

Liquid purification or separation – Processes – Ion exchange or selective sorption
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Profile ID: LFUS-PAI-P-2309236

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