… or boring machinery, for earth, minerals or ores; pile-drivers and pile-extractors; snow-ploughs and snow-blowers. …
Explanatory notes
… or boring machinery, for earth, minerals or ores; pile‑drivers and pile‑extractors; snow‑ploughs and … down rock, earth, coal, etc.; earth excavation, digging, drilling, etc.), or for preparing or compacting the terrain …