4. Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
  5. Closure checks
  6. Spring

King-Sung Yu

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Automatic door closing device

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

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Buffer device of door

Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Closure checks – Spring
Patent

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Profile ID: LFUS-PAI-P-1207877

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