141.TB. in SNCF's classification system could refer to:
- 1-141.TB, ex Est 4401 to 4512
- 2-141.TB, ex Nord 4.1701 and 4.1702
- 3-141.TB, ex État 42-401 to 42-407, exx PO 5616-series
- 4-141.TB, ex PO-Midi 141.616 to 141.740, exx PO 5616 to 5740
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