| http://www.w3.org/ns/prov#value | - I attain this object in the manner shown in the accompanying drawings, in which- Figures l and 2 are an elevation and plan that its sides form an angle of forty-five dev f grees with the sides of the other, their. projection on a plane perpendicular to their common aXis showing the symmetrically-angled figure shown in Figs. 2 and 4:.
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