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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0194532 (1980-10-06) |
발명자 / 주소 |
|
출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 6 인용 특허 : 4 |
An alarm pull station is provided having a housing for attachment to a support, a manually movable member mounted within the housing and having a magnet attached thereto, and a Hall effect switching device responsive to movement of the magnet for providing an output signal. The Hall effect switching
An alarm pull station comprising: a housing for attachment to a support; a manually movable member mounted within said housing; magnet means attached to one of said housing and said manually movable member; and, Hall effect sensing means attached to the other of said housing and said manually movabl
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