4. Metal working
  5. Method of mechanical manufacture
  6. Utilizing transitory attached element or associated separate...

Cheaw Wang Ng

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Method and hinge structure for temporarily installing a door wit

Metal working – Method of mechanical manufacture – Utilizing transitory attached element or associated separate...
Patent

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Method and hinge structure for temporarily installing a door...

Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Hinge – Specific pintle structure
Reexamination Certificate

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