4. Locks
  5. Operating mechanism
  6. Combination

Ching-Yuan Cheng

Inventor

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Case lock

Closure fasteners – Bolts – Loops
Reexamination Certificate

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Combination changing mechanism and combination lock used said me

Locks – Operating mechanism – Combination
Patent

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Combination lock

Tools and hardware – Locking or closing device – Lock – latch or bolt
Patent

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Profile ID: LFUS-PAI-P-832407

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