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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0700078 (1976-06-28) |
발명자 / 주소 |
|
출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 25 인용 특허 : 0 |
A lock of the type having an internal plunger with a stem for being gripped by a tool to pull the stem axially to release locking means, in which said stem has a separate portion protruding from the rear end which is spring biased against the forward portion of the stem. When attempts are made by un
A lock of the plunger operated type, having a housing open at one end, a lock operating plunger axially movable in the housing and biased forwardly away the open end and a tool-engagable member mounted on the operating plunger said member being spring biased to normally extend rearwardly therefrom a
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