There are tens of millions of long vertical ladders around the world - that are dangerous & hard to climb
- VERTICAL STAIRS are far safer & easier to climb
This radical, ergonomically superior design, could displace $100 billion of existing ladder infrastructure in a rapidly GROWING market - THAT INCLUDES cell TOWERS; WIND TOWERS; cranes; silos; fire escapes & manholes

MANUFACTURERS  WANTED

"Walk Straight Up"

Steel Vertical Stairs

Aluminium Vertical Stairs

Vertical Ladders

PATENTS GRANTED 20yrs:

Australia    201567280
USA    US-10,240,392-B2
China    ZL-201580070082.X
Japan    6542892
Europe    EP-3234295
   UK, Ireland, Germany, Belgium, France

PATENTS PENDING:

Mexico   MX/a/2017/007657
India   201717019866
Indonesia   P00201704627


Vertical Ladders don't support the Centre Of Gravity
of the climber.

Vertical Stairs Do.

Manufacturers are sought to make, market & distribute VERTICAL STAIRS under license from the patent holders.

Vertical Stairway Pty Ltd  -  ACN:  617 576 691  -  PO Box 1035 Lightning Ridge NSW 2834 Australia   ph. 61 2 6829 2917   glenn_roddenby@bigpond.com  0488 0655 02