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-0383067 (1995-02-03) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 13 인용 특허 : 9 |
A students portfolio type organizer is convertable to form a seat cushion, a lap desk or a rain hat and includes a hinged cover having inner and outer layers of waterproof sheet material defining between them first and second pockets joined by an elongate gusset hinge. Board members and pads of cush
A combination students portfolio type organizer, seat cushion and lap desk comprising a folder having first and second cover members hingedly joined together along a spine, each cover member comprising a board member having an uncushioned outer surface providing a firm writing support and an inner s
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