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) | B62B-011/00 |
미국특허분류(USC) | 280/649 ; 280/650 |
출원번호 | US-0212071 (1980-12-01) |
발명자 / 주소 | |
인용정보 | 피인용 횟수 : 34 인용 특허 : 2 |
A collapsible stroller frame is provided which includes seat support means, a pair of spaced apart front leg members upper portions of which are pivotally connected to the seat support means, a pair of spaced apart rear leg members upper portions of which include sliding means slidably engaged by the seat support means, handle support means a lower portion of which is connected to the seat support means and an upper portion being in telescoping relation to the lower portion, side bracing means connected to the sliding means of the rear leg members or to ...
A collapsible stroller frame comprising, in combination, seat support means including spaced apart side portions, a rear portion, intermediate portion and front portion, a pair of spaced apart front leg members, said seat support means being pivotally connected to upper portions of said front leg members, a pair of spaced apart rear leg members upper portions of which include sliding means which are slidably engaged by and connected to said seat support means, handle support means comprising an upward extension of said front leg members, a lower portion ...