| http://www.w3.org/ns/prov#value | - By means of a hole or holes through the bases or the extensive removal through the plane central portion, the designer may achieve lighter modules, skeletal modules of the two genuses pyramidal an conical, (see FIG. 10) which allows for the separate construction of the module's sides by industrial processes other than molding, such as extrusion or metal sheet bending for the making of holes throug
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