4. Boring or penetrating the earth
  5. Bit or bit element
  6. Casing shoe type

Philip Strong

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Casing shoe with cutting means

Boring or penetrating the earth – Bit or bit element – Casing shoe type
Patent

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Starch and fiber mixture for papermaking and methods of...

Paper making and fiber liberation – Processes and products – Non-fiber additive
Reexamination Certificate

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Starch and fiber mixture for papermaking and methods of...

Paper making and fiber liberation – Processes and products – Non-fiber additive
Reexamination Certificate

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Profile ID: LFUS-PAI-P-440075

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