[NSRCA-discussion] Slide Ruler,,,,was Art Wagner

[Nat Penton]

Interesting Duane. 
BTY, I purchased my slide rule in 1946. It has an aluminum frame.   
                          Nat
  ----- Original Message ----- 
  From: Duane Beck 
  To: General pattern discussion 
  Sent: Monday, October 13, 2008 2:59 PM
  Subject: Re: [NSRCA-discussion] Slide Ruler,,,,was Art Wagner


  Apparently, William Oughtred in the 1630's.
  http://en.wikipedia.org/wiki/Slide_ruler#History
  http://mysite.du.edu/~jcalvert/tech/slidrul.htm

    -------------- Original message -------------- 
    From: rcmaster199 at aol.com 


    Anyone know who invented the thing??


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