4. Building units and construction elements
  5. Prefabricated unit
  6. Closure

Ming-Li Yang

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Safe grating door

Building units and construction elements – Prefabricated unit – Closure
Design Patent

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Safety door barrier with locking hinge and automatic latch

Movable or removable closures – Removable closure
Reexamination Certificate

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Shank retaining base for screwdriver

Tools – Wrench – screwdriver – or driver therefor – Having work engaging and force exerting portion inserted...
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2483300

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