evaluating sdbd. crown & bridge downbearings in a new piano

Roger C Hayden rchayden1@juno.com
Mon, 20 Sep 1999 22:11:33 -0400


Please explain:

"compression crowned, rather than rib crowned, soundboards. "

We made a pneumatic soundboard press, it works well but which of the
above processes matches our method?

Roger Hayden, RPT
Clarks Summit, PA



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