4. Locks
  5. Operating mechanism
  6. Key

Heinrich Gretler

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Emergency key mechanism on a cylinder lock with a double locking

Locks – Operating mechanism – Key
Patent

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Key

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

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Key for a cylinder lock

Locks – Operating mechanism – Key
Patent

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Key for a cylinder lock and method for making same

Locks – Operating mechanism – Key
Patent

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Key with transverse slots and method of making same

Locks – Operating mechanism – Key
Patent

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Profile ID: LFUS-PAI-P-544827

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