Natare 
security interlock
February 18, 2016 | Categories:
multidoor system in which all doors are normally closed and locked; releasing one door disables the releases for all other doors until the first door is closed and relocked
February 18, 2016 | Categories:
multidoor system in which all doors are normally closed and locked; releasing one door disables the releases for all other doors until the first door is closed and relocked
