Payment #6 of 8 Institutional Locksmithing Online Course

Payment #6 of 8 Institutional Locksmithing Online Course

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Payment #6 of 8 Institutional Locksmithing Online Course (Advanced Locksmith Lessons 42-49).    

ADVANCED LOCKSMITHING
Lesson 42 Safe Deposit Box Locks
Lesson 43 Opening Safe Deposit Boxes
Lesson 44 Making the First Key and Door Repair
Lesson 45 Safe and Vault Locks 
Lesson 46 Basic Operating Principles of Safe Locks
Lesson 47 Hole Type Combination Changes
Lesson 48 Key Change Combination
Lesson 49 Combination Lock Theory