What Keys Cannot Open Locks? What has many keys but can’t open a single lock? The answer is: Piano. What keys can’t open a lock? What has many keys but can’t open a single lock? The answer is: Piano. What kind of key does not open or lock doors? The correct answer is “oligarchy“. Is
What Is A Sub Master Key? The Sub-Master A opens the main entrance and all the locks on the ground floor, and is held by the manager of the company that occupies that floor. … These keys work with different types of lock, e.g. door locks, cabinet locks, padlocks, etc., as long as the cylinder
What Is The Difference Between A Master Key And A Grand Master Key? What is the difference between a master key and a grand master key? A grand master key system is an extensive system that requires locks to be master keyed in groups, with a master key to operate all locks within its own