Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B61
RAILWAYS
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B61L
GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
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13/00
Operation of signals from the vehicle or by the passage of the vehicle
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B61L13/04
using electrical or magnetic interaction between vehicle and track; , e.g. by conductor circuits using special means or special conductors
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