4. Locks
  5. Special application
  6. For control and machine elements

Tong-Lung Metal Industry Co. Ltd.

Corporate Assignee

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Corporate Assignee

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Cylinder lock

Locks – Operating mechanism – Key
Patent

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Cylinder lock with removable and replaceable key plug

Locks – Operating mechanism – Key
Patent

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Door lock

Locks – Special application – For closures
Reexamination Certificate

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Door lock assembly

Closure fasteners – Latch-spindle catches
Patent

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Door lock having a deadbolt assembly with a low-cost corrosion-r

Locks – Special application – For closures
Patent

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