Handicap accessible stair

Details Handicap accessible stair Handicap accessible stair

1996-11-21

1998-09-08

Mai, Lanna

Static structures (e.g., buildings)

With stadium or auditorium feature

Seating arrangement

52183, E04H 312

Patent

active

058027734

ABSTRACT:
A stair which has independent, infinitely variable height steps. The steps collectively form a platform for raising or lowering an individual and return to form a configuration of a stair.

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