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Old Calculator Web Museum Advertising Archive
Early Friden EC-130 Marketing Brochure - Page 3

This vertically-folding brochure appears to be one of the earliest marketing brochures announcing the Friden EC-130 electronic calculator.
Sincere thanks to the sons of Clifford Rueff(Eugene, Christopher, and Roger Rueff) for donation of this document, and a large collection of early Friden calculator materials to the Old Calculator Museum.