Guardrail system for an apparatus movable along a roof structure

A guardrail assembly movable along a roof structure is disclosed. The guardrail assembly is used in cooperation with a roof structure having a plurality of purlins spaced apart from one another in a parallel arrangement and sheets of roofing material fastened to the purlins. The sheets have ends whi...

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Bibliographische Detailangaben
Hauptverfasser: PLANT CLINTON ALAN, WENRICK DENNIS K, NEIFER DON ALBERT, ABNEY ERNEST CRAIG
Format: Patent
Sprache:eng
Schlagworte:
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