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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0347373 (1982-02-10) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 13 인용 특허 : 3 |
A platelike structural panel is disclosed having spaced surfaces with a foamed core material therebetween. The surfaces are formed of sheet metal plates having adjacent longitudinal edges which are bent so as to form grooved seams joining and locking the plates together. The surfaces may be formed b
A platelike structural panel comprising a first continuously formed sheet and a second continuously formed sheet spaced from said first sheet with a core of foamed material therebetween joined to the surfaces of said sheets adjacent the foamed material so as to strengthen said panel, each said sheet
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