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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0861955 (1977-12-19) |
발명자 / 주소 |
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인용정보 | 피인용 횟수 : 14 인용 특허 : 0 |
A greenhouse structure composed of at least five intersected ring members providing a dome-shaped configuration over which a flexible cover is fitted. A particular manner of ring member intersection is employed to make the structure self-supporting. The flexible cover is provided with an arcuate clo
A greenhouse structure composed of: a plurality of ring members at least five in number, each ring member extending over and under at least four other ring members in a manner such that each ring extends, in sequence, over and under a first ring member, over a second ring member, under a third ring
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