Ground surface access cover assemblies

A ground surface access cover assembly (14, Figure 1A), preferably a manhole cover, having a first cover member 16 and a second cover member (18, Figure 1A), each preferably substantially triangular. The first cover member 16 has a first reinforcement beam formation 26, which extends across a centra...

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Bibliographische Detailangaben
Hauptverfasser:	Simon John Gibson, Samantha Sarah Elizabeth Evans, Liam Mark Ratcliffe, Xie Jian Guo, Barry Turner
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS CONVEYING EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS HANDLING THIN OR FILAMENTARY MATERIAL HYDRAULIC ENGINEERING PACKAGES PACKAGING ELEMENTS PACKING PERFORMING OPERATIONS SOIL SHIFTING STORING TRANSPORTING UNDERGROUND OR UNDERWATER STRUCTURES
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