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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0649309 (1984-09-11) |
발명자 / 주소 |
|
출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 60 인용 특허 : 4 |
A roofing system comprises a plurality of prefabricated panels and spacers. The panels comprise a base member and a lamina covering. The lamina extends from one end of the panel to provide an overlap with an adjacent panel and is spaced inwardly of side edges of the base to form exposed parts. In ac
Apparatus for installation on a roof comprising a plurality of panels, each panel comprising base member means and covering means wherein said covering means is a sheet secured to an upper surface of said base member means and having one end substantially flush with one end of said base member means
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