‘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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