Prior to the introduction of computers, the state of the art in precision scientific and engineering calculation was the ten-digit, electrically powered, mechanical calculator, such as those manufactured by Friden, Marchant and Monroe.
Friden, Inc. | Friden | Carl Friden |
In 1965 the company was purchased by the Singer Corporation, but continued operation under the Friden brand name until 1974.
Frode Kjekstad (born 23 November 1974 in Lier, Norway) is a Norwegian jazz musician (guitar), married to jazz singer Aina Fridén, and known from cooperations and recordings with jazz musicians like Lonnie Smith, Eric Alexander, Frank Foster, Johnny Griffin, Don Menza, Jim Morrison, Mark Nightingale, Claire Martin, Deborah Brown, and Wendell Brunious.