4. Earth working
  5. Draft, pitch or ground level responsive depth control

Nicholas George Alfred Ryder

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Precision hoe opener

Machines not elsewhere specified – Agricultural or construction machinery – Plow – tiller or element thereof
Design Patent

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Precision hoe opener with draft force compensation

Planting – Drilling – Frame and planting-element arrangement
Reexamination Certificate

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Precision hoe opener with swing link between cylinder and shank

Earth working – Draft – pitch or ground level responsive depth control
Reexamination Certificate

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Prescision hoe opener with swing link between cylinder and...

Planting – Drilling – Frame and planting-element arrangement
Reexamination Certificate

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Prescision hoe opener with swing link between cylinder and...

Earth working – Draft – pitch or ground level responsive depth control
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2185983

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