Safety device for ladder access opening to an elevated platform

作者: John M. Cronan , Darrell D. Jones , Joseph M. Haynes

DOI:

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摘要: A safety device for that portion of an elevated platform, including a horizontal guard railing, to which open access ladder is attached. The comprises elongated, rigid member adapted form extension the railing; and means securely connecting elongated railing on both sides opening thereby providing includes platform above ladder.

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