Blocking methods for all the systems for closing doors and strongrooms by obstructing the slot of the key

摘要

Blocking methods for all the systems for closing doors and strongrooms by obstructing the slot of the key. The fitting of joints 3 in the cylinder 1 for isolating points of the system will allow their movements by magnetic induction. They operate by radio control by entering a formula on a pocket dial and being powered by solar sensors and/or batteries and/or electricity. <IMAGE>