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) | A01B-001/20 A01B-001/22 |
미국특허분류(USC) | 172/349 ; 172/375 ; 172/751 |
출원번호 | US-0148818 (1980-05-12) |
우선권정보 | DE-7914049 (1979-05-15) |
발명자 / 주소 | |
출원인 / 주소 | |
인용정보 | 피인용 횟수 : 5 인용 특허 : 1 |
A combination garden tool is disclosed. A first tool, which has a handle, and a second tool, which is secured to a coupling mechanism, are provided and are detachably coupled to each other in such a manner that both tools can be operated simultaneously. If desired, however, the second tool can be used alone while attached to the first tool. Preferably, the detachable coupling device includes a clamping bolt movable by means of eccentric supporting projections between a first and a second position to clamp the first tool is mounted to the body of the coup...
A combination garden tool, comprising: a first tool; a handle secured to said first tool; a second tool; and coupling means irremovably secured to said second tool for detachably coupling said second tool to said first tool in a manner such that both said tools can be used simultaneously and further such that at least said second tool can be used alone while said tools are secured to each other; said coupling means including a yoke frame having two support arms joined by a connecting piece and having an axle secured to said support arms and disposed betw...