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Calculations: Bill and Dave Tutored on HP 70

Calculations: Bill and Dave Tutored on HP 70

Lynn Tillman and Janet Loustanou giving Bill Hewlett and Dave Packard a tutorial on the HP 70 financial calculator.

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Date: 1974

Lynn Tillman (second from left) and Janet Loustanou (far right) gave Bill Hewlett and Dave Packard a tutorial on the HP 70 financial calculator. Tillman, a lab development manager, was responsible for keyboard design and programming for the device. Loustanou worked as product marketing manager for the business calculator line.