发明名称 |
Laterally extensible ladder |
摘要 |
A laterally extensible ladder comprises first and second uprights having a plurality of adjacent rung assemblies mounted therebetween. Each rung assembly includes a first hollow rung element that defines a rung axis and a second rung element received in the first rung element. The second rung element is movable along the rung axis for adjusting the length of the rung assembly, hence adjusting the width of the ladder. At least one rung assembly includes a structure for releasably holding the rung assemblies at a selected width configuration. |
申请公布号 |
AU2808801(A) |
申请公布日期 |
2001.04.10 |
申请号 |
AU20010028088 |
申请日期 |
2000.07.18 |
申请人 |
WILLIAM V. ROONEY;JULIE M. ROONEY |
发明人 |
WILLIAM V. ROONEY;JULIE M. ROONEY |
分类号 |
E06C1/38 |
主分类号 |
E06C1/38 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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