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air extractor for asw19 and asw20
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October 20th 17, 04:34 PM posted to rec.aviation.soaring
Papa3[_2_]
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air extractor for asw19 and asw20
IIRC (and I could be wrong) didn't the Mandl Extractor with DG predate Jonkers? At one point the Mandl was advertised as "patent pending" as well....
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