검색연산자 | 기능 | 검색시 예 |
---|---|---|
() | 우선순위가 가장 높은 연산자 | 예1) (나노 (기계 | machine)) |
공백 | 두 개의 검색어(식)을 모두 포함하고 있는 문서 검색 | 예1) (나노 기계) 예2) 나노 장영실 |
| | 두 개의 검색어(식) 중 하나 이상 포함하고 있는 문서 검색 | 예1) (줄기세포 | 면역) 예2) 줄기세포 | 장영실 |
! | NOT 이후에 있는 검색어가 포함된 문서는 제외 | 예1) (황금 !백금) 예2) !image |
* | 검색어의 *란에 0개 이상의 임의의 문자가 포함된 문서 검색 | 예) semi* |
"" | 따옴표 내의 구문과 완전히 일치하는 문서만 검색 | 예) "Transform and Quantization" |
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) | A63H-030/04 |
미국특허분류(USC) | 446/456; 446/176; 446/154; 446/454; 244/016; 280/062 |
출원번호 | US-0519905 (2000-03-07) |
발명자 / 주소 | |
출원인 / 주소 | |
대리인 / 주소 |
|
인용정보 | 피인용 횟수 : 4 인용 특허 : 7 |
A wind propelled vehicle defining a center of gravity. The wind propelled vehicle has a frame. A rear axle is connected to the frame at its rear portion and two rear wheels are rotatably connected to the rear axle. The center of gravity of the wind propelled vehicle is forward of the rear axle. A front wheel is rotatably connected to the frame at its forward portion. A mast is connected to the frame and a boom is connected to the mast. A sail is connected to the mast and boom. A motor is operably connected to the boom and to the front wheel. The motor is...
A wind propelled vehicle defining a center of gravity. The wind propelled vehicle has a frame. A rear axle is connected to the frame at its rear portion and two rear wheels are rotatably connected to the rear axle. The center of gravity of the wind propelled vehicle is forward of the rear axle. A front wheel is rotatably connected to the frame at its forward portion. A mast is connected to the frame and a boom is connected to the mast. A sail is connected to the mast and boom. A motor is operably connected to the boom and to the front wheel. The motor is...