发明名称 Marine propeller
摘要 A marine propeller with increased performance in reverse has a hub and a multiplicity of blades extending radially outward. A portion of the trailing edges of some or all of the blades are modified to lessen interference between blades and increase the bite of those blades when operated in reverse.
申请公布号 US6390776(B1) 申请公布日期 2002.05.21
申请号 US20000539993 申请日期 2000.03.30
申请人 GRUENWALD DAVID 发明人 GRUENWALD DAVID
分类号 B63H1/26;(IPC1-7):B63H1/26 主分类号 B63H1/26
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