Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
Load children
B61
RAILWAYS
Load children
B61L
GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
Load children
1/00
Devices along the route controlled by interaction with the vehicle or train
Load children Filter patents View analytics View as hierarchy
B61L1/16
Devices for counting axles; Devices for counting vehicles
Load children Filter patents View analytics View as hierarchy