View single post by Mike Kearns
 Posted: Wed Mar 11th, 2020 08:00 am
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Mike Kearns



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 1925 - The Leinweber Brothers continue developing the Leinweber blade design. Airmaster Corporation will later use Leinweber design variants on their early production ventilators and circulators.







Last edited on Sat Mar 14th, 2020 11:52 pm by Mike Kearns