再颁专利
- 专利标题： Marine speedometer
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申请号： US441270申请日： 1974-02-11
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公开(公告)号： USRE28839E公开(公告)日： 1976-06-08
- 发明人: Ronald R. Overs
- 申请人： Ronald R. Overs
- 主分类号： G01P5/06
- IPC分类号： G01P5/06 ; G01P5/07
摘要：
A low drag impeller wheel mounted in an enclosure which when installed in the hull of a ship will rotate through the force of water acting upon it, and operate magnetically a pulse generating mechanism that through a current responsive instrument will indicate the speed of the vessel.
公开/授权文献
- US5638392A Short wavelength VCSEL 公开/授权日：1997-06-10
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