'His 1861 cylindrical pin-tumbler lock was an adaptation of ancient Egyptian lock designs'
Linus Yale
INVENTIONS: His 1861 cylindrical pin-tumbler lock was an adaptation of ancient Egyptian lock designs
His 1861 cylindrical pin-tumbler lock was an adaptation of ancient Egyptian lock designs
His 1861 cylindrical pin-tumbler lock was an adaptation of ancient Egyptian lock designs
INVENTIONS
Linus Yale
INVENTIONS