4. Expanded, threaded, driven, headed, tool-deformed, or locked-thr
  5. Externally threaded fastener element, e.g., bolt, screw, etc.
  6. Head having counter-sinking means

Uli Walther

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Screw

Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Externally threaded fastener element – e.g. – bolt – screw – etc. – Head having counter-sinking means
Patent

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Screw for use as a fastener in fibrous material such as wood

Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Having structure to restrict rotation of threaded – mating... – Comprising a thread lock
Patent

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Screw having a head with concave underside

Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Threaded fastener locked to a discreet structure – Nut – and means to engage substructure on its opposite faces...
Reexamination Certificate

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Self-counter-sinking screw with cutting receiving pockets

Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Externally threaded fastener element – e.g. – bolt – screw – etc. – Head having counter-sinking means
Patent

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Self-countersinking screw with cutting receiving pockets

Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Externally threaded fastener element – e.g. – bolt – screw – etc. – Head having counter-sinking means
Patent

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Profile ID: LFUS-PAI-P-1081117

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