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Sharp pental mode
04-17-2018, 02:16 PM
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RE: Sharp pental mode
Sharp is the only place I've ever seen it, and I think I remember reading that it makes sense in the context of certain abacus designs.
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Messages In This Thread
Sharp pental mode - ijabbott - 04-17-2018, 01:22 PM
RE: Sharp pental mode - Dave Britten - 04-17-2018 02:16 PM
RE: Sharp pental mode - ijabbott - 04-17-2018, 03:44 PM
RE: Sharp pental mode - Dave Britten - 04-17-2018, 04:23 PM



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