Pump and propulsion unit
作者： Axel L Nielsen
DOI:
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lens.org 参考文章(6)
Motte Charles Marius, Propeller for vessels ,(1921)
Christopher J Meyer, Portable pump and motor unit ,(1922)
Harold E Schenavar, Outboard motor with auxiliary service pump ,(1948)
Wilmer G Buck, Means for propelling and steering boats. ,(1915)
Millet Georges Jean, Turbot-fusée permettant de réaliser la propulsion d'un véhicule quelconque ,(1937)