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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0590340 (1984-03-16) |
우선권정보 | JP-0050016 (1983-04-04) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 23 인용 특허 : 1 |
A forms set comprising a pair of covers and a set of blanks held therebetween. One or both of the covers have magnetic material therein which is magnetized so that the covers are held closed by the magnetic attraction therebetween. Also, one or both of the external surfaces of the set of blanks has
In a form set comprising a first cover; a second cover; and a set of blanks connected to each other at one edge thereof and disposed between said first cover and said second cover; the improvement comprising at least one of said covers having an entire surface thereof formed of a magnetized material
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