Protection from fire and thieves
CHAPTER I.
LOCKS, KEYS, ETC.
PAGE
Introduction--Locks, ancient and modern--Copying keys--Ornamental keys--Breaking open padlocks--Chubb’s detector lock--Sets of locks--Elements of a good lock--Common locks 1
Protection from fire and thieves
LOCKS, KEYS, ETC.
PAGE
Introduction--Locks, ancient and modern--Copying keys--Ornamental keys--Breaking open padlocks--Chubb’s detector lock--Sets of locks--Elements of a good lock--Common locks 1