Basics of the security engineering of locks and keys
A manual for:
Security officers of the police
Security advisers of the German economy
Hardware specialised trade / workman
Planning department and building control offices / authorities / architects
Issued: September 1983
The book in format 19 x 11,5 cm explains the topic "locks and keys" on over 140 pages with many illustrations.
Suitable for beginners and professional users.