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Wahlmark that formed the Sauer hydraulics and was the inventor and designer behind 78 patents (USPTO) from 1929-1986, a lot of them in the hydraulic engineering. He was the guy behind the patent for the spherical piston with piston rings for axialpiston pumps that Volvo Aero bought in 1964, and in 1983 was the reason why Volvo formed Volvo Hydraulics division that was merged with Monsun-Tison hydraulics (hydraulic valves and electronic control systems for mobile machinery) in 1992 and formed the VOAC hydraulics, that eventually was bought by Parker-Hannifin in februari 1996, needs a separate article. It's a story worth to be told. Wahlmark was at least on same level of engineers and inventors as Sven Wingqvist (double row spherical ball bearings pat. 1907 and double row spherical roller bearings pat. in 1910). Ref: The Sundstrand story 1910-1966, by Fred R. Swanson.. As he was born in America 1904 it´s more related to the English Wikipedia, and the Sauer history, but I will of course create an article also on the Swedish side when there is time enough. Lidingo SWE (talk) 16:59, 14 September 2009 (UTC)
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The above discussion is preserved as an archive of a requested move. Please do not modify it. Subsequent comments should be made in a new section on this talk page or in a move review. No further edits should be made to this section.