Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Hands-free door openers. (a,b): device using clips on a straight handle with circular section; (c,d): device using cable ties on a straight handle with circular section; (e,f): device using cable ties on a curved handle with elliptical section.
