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    Re: Quicker Ex-Meridian Formula for Slide Rule or Calculator
    From: Greg Rudzinski
    Date: 2016 Dec 1, 10:46 -0800

    Here is a link to the Blundell slide rule with the XM mark. I just might have to get one of these.

    http://sliderulemuseum.com/British/Blundell_Harling_SuperDuplexA504_ScanBySteveSealeCollection.jpg

    Greg Rudzinski

       
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