Nestable traffic marker
作者： George W Clayton
DOI:
关键词: Bead (woodworking) 、 Nesting (process) 、 Position (vector) 、 Structural engineering 、 Movement (music) 、 Engineering
摘要: Traffic marker characterized by three members, each formed from a side wall and bead of pneumatic tire, the members being hinged together for movement generally flat nesting relationship to an erect position.
lens.org 参考文章(4)
Lew B Goland, Marc B Goland, Highway directional device ,(1966)
Martinov Melvin, Combination traction aid and warning device for vehicles ,(1963)
George B Brands, Protector for highway markings ,(1955)
Anthony Finazzo, John M Kiniry, John R Carroll, Safety signal device ,(1969)