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    Re: Edward J Willis
    From: David Pike
    Date: 2020 Nov 6, 16:26 -0800

    Was there any business relationship between Henry Hughes and Heath & Co?

    To quote  "Heath & Co in London manufactured the machines at Willis's expense".

    David C

    I only mentioned that as a possibility after reading the email to me.  After a bit more reading, I can see that other firms were experimenting with PZX triangle solvers in the 1930s, so I'm coming away from the idea that there might have been any relationship between Willis and Hughes.  I'm coming round to the idea that Hughes were probably toying around with the PZX solver concept so they didn't miss the boat if the idea suddenly became popular with the military, big companies, and others with purchasing power. DaveP  

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