Image:Dardick tround pat 2865126 fig4.png

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[edit] Summary

Figure 4 of US patent 2,865,126, for the tround, by David Dardick

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current21:13, 24 May 2007406×432 (43 KB)Fluzwup (Talk | contribs) (Figure 4 of US patent 2,865,126, for the tround, by David Dardick)

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