| http://www.w3.org/ns/prov#value | - BACKGROUND OF INVENTION The present invention relates to burglar-proofing systems for securing houses and other buildings, and more particularly to a method and lock mechanism for burglar-proofing an opening closed by two relatively movable members such as a door and jamb, a pair of window sashes or a sash and its jamb, the lock mechanism featuring a hidden latch concealed from external view and o
|
