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-0045350 (1993-04-13) |
발명자 / 주소 |
|
출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 4 인용 특허 : 0 |
A speed bump for use in connection with highways located in climates where a snow plow is used to clear the highways includes a raised mass fabricated from highway construction material. The raised mass has a crown, a base where the raised mass meets a surface of the highway, and a slope of the rais
Speed bumps for use in connection with highways located in climates where a snow plow is used to clear the highways comprising: speed bumps fabricated from highway construction material; said speed bumps each having a length extending in an axial direction substantially across adjacent traffic lines
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