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) | B60D-001/52 |
미국특허분류(USC) | 280/495 ; 280/4915 |
출원번호 | US-0060305 (1993-05-10) |
발명자 / 주소 | |
인용정보 | 피인용 횟수 : 23 인용 특허 : 0 |
A concealed trailer hitch device for a vehicle or truck comprises a first hitch interconnect member permanently and rigidly fixed to a frame of the vehicle. The first hitch interconnect member has a coupling member integrally formed as one of its parts which is in a downward orientation and is at least partially concealed under the vehicle. The hitch device includes a second hitch interconnect member of singular construction which has (i) a first end configured for insertion onto the coupling member of the first interconnect member along the downward ori...
A concealed trailer hitch device for a tow vehicle comprising: a first hitch interconnect member permanently and rigidly fixed to a rear frame of the vehicle and having a coupling member integrally formed as part of the first hitch interconnect member in a downward orientation; a second hitch interconnect member of singular construction having (i) a first end configured for insertion onto the coupling member of the first interconnect member along the downward orientation and (ii) a receiver end configured with a hitch receiver socket as a remaining end w...