4. Tools
  5. Wrench, screwdriver, or driver therefor
  6. Plural pivoted jaws and handle-lever

Peter Kouwenhoven

Inventor

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Screw with tamper-proof head

Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Externally threaded fastener element – e.g. – bolt – screw – etc. – Head driving structure
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Screwing element

Tools – Wrench – screwdriver – or driver therefor – Plural pivoted jaws and handle-lever
Reexamination Certificate

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Screwing element

Tools – Wrench – screwdriver – or driver therefor – Plural pivoted jaws and handle-lever
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2098035

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