4. Excavating
  5. Snow or ice removing or grooming by portable device
  6. Combined or convertible

Arlen L. Olsen

Examiner

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Examiner

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A hydraulic remotely-controlled bleeder valve for a well head

Wells – Above ground apparatus – Well caps or casing heads
Patent

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Adjustable blade holder

Excavating – Ditcher – Wheel excavator
Patent

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Adjustable flume

Hydraulic and earth engineering – Fluid control – treatment – or containment – Flow control
Patent

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Anchoring device, such as a rock anchor

Hydraulic and earth engineering – Earth treatment or control – Chemical
Patent

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Angled release clutch system

192 clutches and power-stop control – Clutches – Axially engaging
Patent

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Profile ID: LFUS-PAI-P-4174

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