00680cam a2200241 4500009213246MiAaHDL20101116000000.0m d cr bn ---auaua850719s1931 ohuf |000 0 eng 31021880 A39892U.S.Copyright Officesdr-coo611002(OCoLC)3661370NICNICTL716.G7Copy 2.629.13Grose, Parlee Clyde,1889-The problem of vertical flight,by Parlee C. Grose.McComb, O.,General Publishing Company[c1931]128 p.plates.16 cm.Mode of access: Internet.FlightHelicoptersVertical flight, The problem of.00921324620100824164924.020101116000000.020120814072540.02024-06-25T17:36:51Z2024-06-25T17:30:02ZSDR-COOUNKNOWNloader.pl-001-001BKsdr-coo611002cooSDRCOOcoo.31924004635136COO611002COOCOO20240625googlecoo.319240046351361931pdren