최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0082362 (1979-10-05) |
우선권정보 | ES-0474204 (1978-10-13); ES-0480942 (1979-05-25); ES-0480943 (1979-05-25) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 37 인용 특허 : 0 |
A personal security door arrangement constituted by the juxtaposition of two doors, which may be coupled together at will, in one same frame in an opening, the outer door affording complete visibility and, possibly, the passage of small objects, while the inner door is conventional. Said doors are h
Personal security door arrangement, characterised in that there is disposed in a fixed door frame a conventional inner door juxtaposed to an outer protective door affording complete visibility therethrough and allowing the passage of small objects, said doors being hingedly mounted to the door frame
※ AI-Helper는 부적절한 답변을 할 수 있습니다.