Forum: Patent & Propriety Locks
Moderator: awaiting/TBA | Post in this forum locks that demonstrate a Patent, or a Security Feature or even a Brand Name or Logo. You will find here Locks for: Doors, Furniture, Safes, Vaults, including: Combination Locks for Safes, Key Locks for Safes, Time Locks & Bolt Motors, Unit Locks, etc.
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I have noticed a trend in my small collection of KIK (Key In Knob) cylinders. About half are 5/8" (.625") in diameter plus or minus a few thousandths, the other half are 16 mm (.630") in diameter...
Key In Knob (KIK)...