patented unrestricted keyway

  n.
   a specific keyway which is sold without restriction by a lock maker, but which retains patent protection against non-original key blank makers

Locksmith dictionary . 2014.

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.