4. Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
  5. Checks and closers
  6. Liquid

Sheng-Hu Hung

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Lightly-operating automatic door closer with double cylinders

Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Checks and closers – Liquid
Patent

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Locking device of a combination lock

Locks – Operating mechanism – Combination and key
Patent

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Push and pull type cylinder lock

Locks – Special application – For control and machine elements
Patent

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Profile ID: LFUS-PAI-P-409632

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