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" |
국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) | H05B-003/00 A47J-027/00 |
미국특허분류(USC) | 219/401 ; 219/438 ; 219/472 ; 99/339 |
출원번호 | US-0083368 (1993-06-25) |
발명자 / 주소 | |
인용정보 | 피인용 횟수 : 14 인용 특허 : 0 |
A multi-purpose cooker for steaming, drying or boiling foodstuffs includes a base having a switch, an electric heater mounted on the base, a bottom plate mounted on the electric heater, a water container mounted on the bottom plate, a water collector mounted on the water container, a plurality of drying pans mounted on the water container, a steaming pan mounted on the drying pans, a cooking pan mounted on the steaming pan, a cover mounted on the cooking pan and formed on a top with a recess having a center hole, and a plurality of ventilating perforatio...
A multi-purpose cooker comprising: a base having a switch; an electric heater mounted on said base; a bottom plate mounted on said electric heater; a water container mounted on said bottom plate; a water collector mounted on said water container; a plurality of drying pans mounted on said water container; a steaming pan mounted on said drying pans; a cooking pan mounted on said steaming pan; a cover mounted on said cooking pan and formed on a top with a recess having a center hole, said recess having a plurality of ventilating perforations divided into f...