4. Planting
  5. Drilling
  6. Furrow opener

Don C. Rowlett

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Agricultural disc blade

Metal tools and implements – making – Blank or process – Rotary cutter
Patent

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Agricultural disc blade

Earth working – Rolling – rotating or orbitally moving tool – Detailed disk structure per se
Patent

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Agricultural insert

Earth working – Tool – standard or connection – Non-rectangular – symmetrical type
Patent

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Agricultural insert

Earth working – Tool – standard or connection – Non-rectangular – symmetrical type
Patent

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Bit holder block with non-rotating wear sleeve

Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Clamped tooth holder or tooth mount
Reexamination Certificate

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Profile ID: LFUS-PAI-P-364613

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