Period

7 results for: ventilating

  • Page
  • of
  • 1
Please sign in for more results
John Kresse's method of ventilating railway tunnels
ARP23A18_130

John Kresse's method of ventilating railway tunnel...

Engraving depicting the use of a lever to work bellows ventilating a mine
ARP23A16_068

Engraving depicting the use of a lever to work bel...

Ventilating a mine using bellows
ARP15A00_012

Ventilating a mine using bellows

Ventilating a mine
ARP07111_009593P

Ventilating a mine

Ventilating a mine
ARP07111_009597P

Ventilating a mine

Three devices for ventilating mines with bellows
ARP07111_009613P

Three devices for ventilating mines with bellows

Ventilating a mine
ARP07111_009615P

Ventilating a mine