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经营范围
发明名称
PROPELLER
摘要
A propeller, one or more blades of which has the configuration of a sinusoidal curve wrapped around its shaft in a semi-circle and whose leading edge is at the nadir of the sine curve and whose trailing edge is at the zenith.
申请公布号
CA2122161(A1)
申请公布日期
1995.10.27
申请号
CA19942122161
申请日期
1994.04.26
申请人
LAWRENCE, ALBERT B. R.
发明人
LAWRENCE, ALBERT B. R.
分类号
B63H1/28;(IPC1-7):B63H1/28
主分类号
B63H1/28
代理机构
代理人
主权项
地址
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