David Hayden is a registered user.
|Date Registered:||December 2008|
|Location:||Central New Jersey, USA|
|Interests:||HP 41 series, HP 29C, H49 series, improving the usability of calculators|
David Hayden has chosen to keep his/her email address private. Unfortunately it is not possible to contact posters privately from archived posts. We're sorry for the inconvenience.
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