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Sep 5, 2018, 10:52 AM Mike Syphers edited Historical Pictorial
Aug 27, 2018, 5:54 PM Mike Syphers edited Slide Rules
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Aug 27, 2018, 5:47 PM Mike Syphers attached IMG_3768.jpg to Slide Rules
Aug 18, 2018, 1:58 PM Mike Syphers edited Slide Rules
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May 29, 2018, 11:04 AM Mike Syphers edited Slide Rules
May 29, 2018, 10:40 AM Mike Syphers edited Slide Rules
May 29, 2018, 10:27 AM Mike Syphers updated RotaRule.jpg
May 29, 2018, 10:27 AM Mike Syphers updated Gilson.jpg
May 29, 2018, 10:27 AM Mike Syphers updated Fuller.jpg
May 29, 2018, 10:25 AM Mike Syphers edited Slide Rules
May 29, 2018, 10:23 AM Mike Syphers attached Fuller.JPG to Slide Rules
May 29, 2018, 10:23 AM Mike Syphers attached Gilson.JPG to Slide Rules
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May 23, 2018, 7:34 PM Mike Syphers edited Slide Rules
May 23, 2018, 7:31 PM Mike Syphers attached KnEpic.jpg to Slide Rules
May 23, 2018, 7:31 PM Mike Syphers attached Goodyear.jpg to Slide Rules
May 23, 2018, 7:31 PM Mike Syphers attached Faber.jpg to Slide Rules
May 23, 2018, 7:31 PM Mike Syphers attached Dietzgen.jpg to Slide Rules
May 23, 2018, 7:30 PM Mike Syphers deleted attachment Goodyear.jpg from Slide Rules
May 23, 2018, 7:30 PM Mike Syphers deleted attachment KnEpic.jpg from Slide Rules
May 23, 2018, 7:30 PM Mike Syphers deleted attachment Faber.jpg from Slide Rules
May 23, 2018, 7:30 PM Mike Syphers deleted attachment Dietzgen.jpg from Slide Rules

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