In Reply to: RE: Do slide rules have a Pi on them? Nt posted by Steve O on March 14, 2015 at 18:53:38:
Some say it wasn't done... you seem to have further "proof"!
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Follow Ups
- RE: Do slide rules have a Pi on them? Nt - middleground 03:34:32 03/15/15 (1)
- RE: Do slide rules have a Pi on them? Nt - Steve O 08:41:18 03/15/15 (0)