发明名称 MARINE VESSEL PROPULSION AND TUBULAR RUDDER SYSTEM
摘要 A water craft propulsion and steering system is disclosed in which a pair of tubular steering rudders are mounted one on the front end and aft end, respectively, of a propeller shroud tube. Power means is provided for turning both steering rudders in the same direction for increased steering thrust.
申请公布号 CA2527147(C) 申请公布日期 2012.09.25
申请号 CA20052527147 申请日期 2005.11.16
申请人 SEIFORD, DONALD S., SR. 发明人 SEIFORD, DONALD S., SR.
分类号 B63H25/38;B63H5/14;B63H25/06 主分类号 B63H25/38
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