On the article concerning PL5000 Corbin Russwin Padlocks this is the web page for the padlock catalogue mentioned in the article.
http://www.assaabloydss.com/library/catalogs/CorbinRusswin/pdf/45012.pdf

On APB 2400 by automated Lock Systems try their web site.  http://www.automatedlock.com/

In dealing with interchangeable core lock cylinder the Arrow web site may be helpful  http://www.arrowlock.com/content/section/28/67/

Another interesting site on I/C and see the advertising and how the large companies are using the web to find new customers
 http://www.patentstorm.us/patents/5070715.html

Marray Article: DHI Fire Door Assembly Inspector program, visit  http://www.dhi.org/ 
                     For a short video and further information on the Perfect Raceway program, you can visit www.perfectraceway.com/