▰ Sources. Datamath Calculator Museum. Datamath Calculator Museum - Featured Companies. The Datamath Calculator Museum reflects mainly on products from the US based company Texas Instruments. To round off the exhibition you will find products manufactured by Texas Instruments and sold under different badges, too. Just the same things happens with products developed by other companies and sold by Texas Instruments. Another part of the museum gives an overview of important products in the calculator history influenced by Texas Instruments. If you have additions to the description of the companies please send an email to: joerg@datamath.org. AccuBalance Corporation was founded in 2003 by Glenn Witherspoon in St. APF Electronics, Inc. was founded in 1970 by the brothers Al & Phil Friedman in Queens, New York to import stereos from Japan to the U.S., specifically quadraphonic sets and 8-track player.
Hamburg (Germany) located company Dennert & Pape started already in the year 1872 the business with slide rules. Ataba Co. Best Buy Co.,Inc. was founded in 1966 by Richard M. A.W.