4. Boring or penetrating the earth
  5. Bit or bit element
  6. Bit with leading portion forming smaller diameter initial bore

George Spencer

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Drilling tool especially for the rotary percussion drilling...

Boring or penetrating the earth – Bit or bit element – Bit with leading portion forming smaller diameter initial bore
Reexamination Certificate

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Heat resistant lubricating oil composition

Solid anti-friction devices – materials therefor – lubricant or se – Lubricants or separants for moving solid surfaces and... – Organic phosphorus compound – wherein the phosphorus is...
Reexamination Certificate

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Method of and apparatus for making a cigarette rod with an...

Tobacco – Cigar or cigarette making – Molding or forming
Reexamination Certificate

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Method of and apparatus for transferring cigarette packet...

Manufacturing container or tube from paper; or other manufacturi – Container making – Rigid container
Reexamination Certificate

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Plastering fillet with attached reinforcing material

Fabric (woven – knitted – or nonwoven textile or cloth – etc.) – Scrim – Woven scrim
Utility Patent

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Profile ID: LFUS-PAI-P-2050786

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