EXTENSION STEP-LADDER AND TRESTLELATTA CHARLES
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provide reach to high areas.Telescoping extension laddersextend and adjust to different heights and collapse into a compact size for transport and storage.Trestle extension laddersare stepladders with extra center sections that extend upward for greater reach and act as a trestle to hold...
EXTENSION STEP-LADDER AND TRESTLE 来自 FreePatentsOnline 喜欢 0 阅读量: 7 发明人: L Charles 收藏 引用 批量引用 报错 分享 全部来源 求助全文 FreePatentsOnline 0关于我们 百度学术集成海量学术资源,融合人工智能、深度学习、大数据分析等技术,为科研工作者提供全面快捷的学术服务。在这里我们保持学习的态度,...
EXTENSION STEP-LADDER AND TRESTLE.doi:US737636 ACHARLES LATTAUS