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

Chao-Wei Lin

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Biodegradable plastic material and method for producing the...

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate

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Compound screw drive recesses mold

Threaded – headed fastener – or washer making: process and apparat – Apparatus for making externally threaded fastener or... – Screw fastener making
Reexamination Certificate

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Screw with compound recesses

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

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Screw-belt advancing mechanism for a screw driving gun

Tools – Wrench – screwdriver – or driver therefor – Machine
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Wood screw with different shank radii

Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Externally threaded fastener element – e.g. – bolt – screw – etc. – Pilot end having means enhancing fastening or installation
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2126926

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