4. Cutlery
  5. Combined cutlery or combined with ancillary feature
  6. With material-holder or disposal

C. Warren Duncan

Inventor

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Dust disposal attachment for a rotary element of a power tool

Cutlery – Combined cutlery or combined with ancillary feature – With material-holder or disposal
Patent

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Grinding vacuum shroud

Abrading – Accessory – Guard or housing
Patent

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Hole coring system

Boring or penetrating the earth – Bit or bit element – Casing shoe type
Reexamination Certificate

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Hole coring system with lever arm

Boring or penetrating the earth – Processes
Reexamination Certificate

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Multidisc floor grinder

Abrading – Machine – Rotary tool
Reexamination Certificate

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Profile ID: LFUS-PAI-P-90623

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