최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0381831 (1989-07-19) |
발명자 / 주소 |
|
출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 23 인용 특허 : 4 |
In a flip-chart comprising at least two sheets disposed in overlying relationship and releasably securable to one another by means of static cling, each said sheet adapted for writing thereon and erasure of said writing, and each said sheet being removeable from said other sheets for releasable secu
In a flip-chart pad comprising a plurality of overlying tear sheets releaseably attracted to one another by means of static cling so as to define said pad, each said sheet adapted for writing thereon and for dry erasure of said writing for reuse of said sheet, and each said sheet being removeable fr
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