4. Earth working
  5. Automatic power control
  6. Land leveller type

Timothy J. Ptacek

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Agricultural planting machine having interchangeable seed...

Planting – Drilling – Having depositor feature
Reexamination Certificate

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Low transport height stack fold implement

Earth working – Plural wheeled implements – Outrigged implement adjustable inwardly
Patent

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Method and apparatus for automatically controlling the soil pene

Earth working – Automatic power control – Land leveller type
Patent

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Subsoil fertilizer applicator having arcuately adjustable knife

Planting – Liquid or gas soil treatment – Drilling machines
Patent

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Profile ID: LFUS-PAI-P-1212454

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