B61L 13/02
Operation of signals from the vehicle or by the passage of the vehicle using mechanical interaction between vehicle and track
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Edits on 9 Mar, 2022
Golden AI
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Infobox (+4 properties)
Description (+125 characters)
B61L 13/02
Operation of signals from the vehicle or by the passage of the vehicle using mechanical interaction between vehicle and track
Infobox
Classification Type
Parent classification
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