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<p>[QUOTE=&quot;Happy!, post: 11304, member: 237&quot;]Nope, no vents anywhere.&nbsp; </p><p><br /></p><p>Been reading online and the first electric drill with a trigger mechanism was invented around 1917, I think.&nbsp; It has vent holes.</p><p><br /></p><p>From about 1900 to that time, one site mentioned all aluminum bodies that were built like a truck.&nbsp; </p><p><br /></p><p>Bakelite was invented in 1906, but looks like not widely used in factories until the 1930s, so not sure if that even helps to date this...[/QUOTE]</p><p><br /></p>

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