4. Bearings
  5. Rotary bearing
  6. Roller drill bit

Fred A. Winans

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Abradable cutter protection

Boring or penetrating the earth – Bit or bit element – Magnetized or with magnet
Patent

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Air seal between relatively moveable ducts

Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent

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Amorphous alloy plain bearings

Bearings – Rotary bearing – Roller drill bit
Patent

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Apparatus for producing desired fiber column configuration

Glass manufacturing – Processes – With shaping of particulate material and subsequent fusing...
Patent

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Axial compression positive rock bit seal

Cutlery
Patent

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Profile ID: LFUS-PAI-P-86164

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