4. Mining or in situ disintegration of hard material
  5. Hard material disintegrating machines
  6. With mine roof-supporting means

Luc Drolet

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Displaceable working apparatus with extensible boom

Mining or in situ disintegration of hard material – Hard material disintegrating machines – With mine roof-supporting means
Patent

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Displaceable working platform with extensible boom

Fire escape – ladder – or scaffold – Means maintaining platform level on angularly movable support – Swingable support
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Profile ID: LFUS-PAI-P-646605

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