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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0511639 (1990-04-20) |
발명자 / 주소 |
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인용정보 | 피인용 횟수 : 4 인용 특허 : 0 |
Automatic horn warning signal apparatus for use on boats is compact, unitary, self-contained, lightweight, drycell-battery-energized, is manually selectably actuated for automatically sounding any of nine predetermined patterns of warning horn signal sequences applicable to specified, recognized nav
Horn signal apparatus for use on boats, said apparatus comprising: a horn, valve means connected between said horn and a removable container of pressurized gas for preventing said valve means normally being closed for preventing pressurized gas from flowing from said container to said horn, said val
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