| 摘要 |
A ladder having five leg members. A first pair of leg members form a front portion and a second pair of leg members disposed behind the front pair are used when the ladder is used as a four legged ladder and a fifth leg member disposed behind and intermediate the second pair of leg members is use when the ladder is used as a three legged ladder. Rung members are disposed between and attached to facing surfaces of such first pair of leg members. The first pair of leg members are rotateably secured to the second pair of leg members and a fifth leg member is disposed intermediate such second pair of leg members.
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