| More topics under "B60M - Power supply lines, or devices along rails, for electrically-propelled vehicles" (5,283) |
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| B60M 1 - Power supply lines for contact with collector on vehicle (3,421) |
| B60M 3 - Feeding power to the supply lines in contact with collector on vehicles; Arrangements for consuming regenerative power (874) |
| B60M 5 - Arrangements along running rails or at joints thereof for current-conduction or insulation, e.g. safety devices for reducing earth currents (279) |
| B60M 7 - Power lines or rails specially adapted for electrically-propelled vehicles of special types, e.g. suspension tramway, ropeway, underground railway (709) |