Book "Schloß und Schlüssel", Heinz Pickshaus, German

Heinz Pickshaus

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.