Locksoft LLC

‘Master Keying by the Numbers’

‘Master Keying by the Numbers’ is a technical instruction book on master keying.

Fifth Edition, Hard Bound with 399 printed pages covering:

  • Terminology
  • Cylinder designs and specifications
  • The Premise Survey
  • Hardware Schedules
  • The Standard Key Coding System
  • List format progression
  • The Standard Progression Format
  • The Matrix Format
  • Intelligent Cross Keying
  • Key Control Programs
  • Encryption Techniques
  • Construction Keying

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