B61L 2003/223
French cab signaling system, called "transmission voie-machine" [tvm]
Official title: {French cab signaling system, called "Transmission Voie-Machine" [TVM]}
B61L2003/223 (French cab signaling system, called "transmission voie-machine" [tvm]) appears on 0 US grants and 0 published applications in this corpus.
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