Talk:Tension meter
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Trying to trace invention
[edit]Not that I'm going to use much time on this, but freepatentonline's "referenced patents" links led me to [1], which is a 1947 patent. I don't have a login, so I don't get to see it yet. --Alvestrand (talk) 07:02, 3 November 2008 (UTC)
- Google patents, [2], gave a better image. --Alvestrand (talk) 07:05, 3 November 2008 (UTC)