Thread: Math Question
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Old 11-29-2020, 07:47 PM
  #8  
Barb in Louisiana
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Join Date: Jun 2010
Location: The Deep South near Cajun Country, USA
Posts: 5,387
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A couple of postings on the board about the D9P

http://www.quiltingboard.com/t-95621-1.htm

Sandy's version of DPN. (Disappearing 9 patch) pics in post #17 - Quiltingboard Forums
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