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) | B32B-003/12 B32B-003/28 |
미국특허분류(USC) | 428/178 ; 52/616 ; 52/618 ; 350/160R |
출원번호 | US-0685520 (1976-05-12) |
발명자 / 주소 | |
인용정보 | 피인용 횟수 : 55 인용 특허 : 0 |
A panel of spaced, parallel, translucent, outer sheets of set plastic material with an inner sheet of corrugated sheet plastic disposed therebetween with the crests of the corrugations at the opposite faces of the corrugated sheet being engaged with, and secured in fixed relation to, adjacent outer sheets, respectively. Each corrugation has alternate show areas and shade areas. The show areas are coated with material which reflects light or impedes the passage of light therethrough. The shade areas are generally uncoated so that, relative to the show are...
A structural unit comprising: a first sheet of radiation transmitting material, at least part of which is translucent; a second sheet of radiation transmitting material, at least part of which is translucent and part of which is radiation reflective; said second sheet being corrugated to present at one face alternate corrugation crests and valleys with the bottoms of the valleys at each of its faces being the crests at the opposite of its faces; said second sheet being disposed with said one face facing toward said first sheet and with said crests juxtap...