Elevators ; electric and electrohydraulic elevators, escalators, moving sidewalks and ramps

Ижил төстэй зүйлс

• Vertical transportation : elevators and escalators/
  -н: 195509 Strakosch, George R.
  Хэвлэсэн: (1967)
• Vertical transportation : elevators and escalators/
  -н: 195509 Strakosch, George R.
  Хэвлэсэн: (1983)
• Handbook on A17.1 safety code for elevators and escalators /
  -н: 421698 Donoghue, Edward A.
  Хэвлэсэн: (1993)
• Vertical transportation /
  -н: 11696 Institution of Heating and Ventilating Engineers (Great Britain)
  Хэвлэсэн: (1970)
• Safety rules for the construction and installation of escalators and passenger conveyors
  -н: 8096 British Standards Institution