Frederick Charles Lavarack

Born 1883-01-01

Identifiers

Open LibraryOL2521639A

Top Subjects

Railroads -- Signaling -- Interlocking. (1)

Books by Frederick Charles Lavarack

Total count: 1

Lockingbeing an elementary treatise on the mechanisms in interlocking lever machines by which the movements of the levers are restricted to certain predetermined ways, rendering it impossible to operate conflicting switches and signals on railways.

F.C. Lavarack1907-01-01